5.9.4. Bibliographic references (revised)

Bibliographic references include various elements (such as author’s name, title, publisher, place of publication and year of publication) which depend on the kind of resource that is being referred to.

Bibliographic references include various elements that depend on the kind of information resource referred to and where they are used – in a bibliography, in a footnote or in the text. The presentation of reference elements (punctuation, formatting, etc.) always follows the same style, regardless of the place of the reference. Regarding the order of elements, there is a specific form for in-text references that follows the name and date referencing system.

Reference to a complete work

The following order of elements, separated by commas, should be adopted:

  1. author or editor (the role of editor is indicated by ‘(ed.)’ or ‘(eds)’):
    • corporate author and/or
    • author’s surname and initial(s) or first name;
  2. title of the work in italics and, where appropriate, edition number;
  3. publisher, place of publication (optional), year of publication, etc.;

European Commission: Directorate-General for Communication, A Short Guide to the EU, Publications Office of the European Union, Luxembourg, 2023, https://data.europa.eu/doi/10.2775/877284.

European Commission: Directorate-General for Justice and Consumers, Kotevska, B. and Pavlou, V., Promotion of Gender Balance in Political Decision-making, Publications Office of the European Union, Luxembourg, 2023, https://data.europa.eu/doi/10.2838/749712.

Butcher, J., Drake, C. and Leach, M., Butcher’s Copy-editing – The Cambridge handbook for editors, copy-editors and proofreaders, 4th edition, Cambridge University Press, 2006, https://doi.org/10.1017/CBO9780511482106.

Parkinson Zamora, L. and Faris, W. B. (eds), Magical Realism – Theory, history, community, Duke University Press, Durham, 1995.

Reference to part of a work (contribution or chapter)

The following order of elements, separated by commas, should be adopted:

  1. title of the contribution or chapter, within quotation marks;
  2. editor of the work, preceded by ‘in:’ and followed by ‘(ed.)’ (or ‘(eds)’);
  3. title of the work in italics and, where appropriate, edition number;
  4. publisher, place of publication (optional), year of publication, relevant page(s), etc.;

Slemon, S., ‘Magic realism as postcolonial discourse’, in: Parkinson Zamora, L. and Faris, W. B. (eds), Magical Realism – Theory, history, community, Duke University Press, Durham, 1995, pp. 407–426.

Reference to a serial publication or to part of one

The following order of elements, separated by commas, should be adopted:

  1. where appropriate, title of the article or entire issue, within quotation marks;
  2. title of the serial publication in italics;
  3. number or date;
  4. publisher (optional), place of publication (optional), year of publication, relevant page(s), etc.;
  5. if available, persistent identifier in the form of a URI, for example a DOI:

Commission of the European Communities: Directorate-General for Economic and Financial Affairs, ‘Economic transformation in Hungary and Poland’, European Economy, No 43, March 1990, Office for Official Publications of the European Communities, Luxembourg.

NB:

Since 1.7.2009: ‘Publications Office of the European Union’. Make sure that the original name is kept for publications issued before that date.

Manley, S., Moslemzadeh Tehrani, P. and Rasiah, R., ‘The (non-)use of African law by the International Criminal Court’, European Journal of International Law, Vol. 34, Issue 3, 2023, pp. 555–580, https://doi.org/10.1093/ejil/chad035.

Reference to grey literature (working papers, reports, meeting minutes, etc.)

The following order of elements, separated by commas, should be adopted:

  1. title of the document, within quotation marks;
  2. document number / register reference;
  3. date of the document;

European Commission, ‘Consultation on a monitoring framework for the 8th environment action programme’, Ares(2021)4555569, 14 July 2021, https://environment.ec.europa.eu/system/files/2021-07/Explanatory%20Note%208EAP%20Indicators.pdf.

NB:

Documents that are used to prepare European Union legislation, such as Commission COM or SWD documents (see ‘Preparatory documents’ on EUR-Lex), are not considered to be grey literature. They should be referred to in the same way as legal documents. If such a document is published as an electronic or printed publication with assigned identifiers, such as a DOI, the rule for citing a complete work applies.

Reference to a dataset

The following order of elements, separated by commas, should be adopted:

  1. title of the dataset, within quotation marks;
  2. where appropriate, version/edition number;
  3. publisher, if different from author;
  4. date of publication:
    • date of creation or
    • if the source has been updated, date of update and, in brackets, date of creation;
  5. date of citation (indicating the date on which the source was accessed);

European Commission: Directorate-General for Informatics, ‘National Interoperability Framework Observatory (NIFO) – Digital public administration factsheets 2020’, Publications Office of the European Union, 1 December 2020, accessed 6 December 2023, https://doi.org/10.2906/100105103105116/1.

European Commission: Directorate-General for Justice and Consumers, ‘Safety Gate (the EU rapid alert system – non-food)’, Version 0.1, 14 December 2018 (created 1 February 2016), accessed 16 June 2023, http://data.europa.eu/88u/dataset/rapex-rapid-alert-system-non-food.

Reference to a web page

The following order of elements, separated by commas, should be adopted:

  1. title of the web page, within quotation marks;
  2. title of the website;
  3. if available, date of publication:
    • date of creation or
    • if the source has been updated, date of update and, in brackets, date of creation;
  4. date of citation (indicating the date on which the source was accessed);

European Commission, ‘Statement by the European Commission following the fourth meeting of the EU–UK Joint Committee’, STATEMENT/20/1948, European Commission website, 19 October 2020, accessed 20 June 2023, https://ec.europa.eu/commission/presscorner/detail/en/statement_20_1948.

NB:

The rule for citing web pages does not concern publications in HTML format. They may be available as web pages, but they are identified with international identifiers, including a DOI, and should be cited in accordance with the rule for the type of publication in question (a complete work, part of a work, etc.).

European Court of Auditors, The coordination role of the European External Action Service – Mostly working effectively, but some weaknesses in information management, staffing and reporting, Special report 02/2024, Publications Office of the European Union, Luxembourg, 2024, https://data.europa.eu/doi/10.2865/772879.

Reference to a social media post

The following order of elements, separated by commas, should be adopted:

  1. author’s social media identity preceded by social media name and a colon, in brackets;
  2. title or (abbreviated) content of the post, within quotation marks;
  3. in the case of a repost, name and social media identity of original author;
  4. date of publication;
  5. date of citation (indicating the date on which the source was accessed);

Publications Office of the European Union (Facebook: @Cordis_EU), ‘75 Results Packs publications, thematic collections of #H2020 #EUfunded research projects, offered on Cordis’, 16 November 2020, accessed 29 August 2023, https://www.facebook.com/EUresearchResults/posts/1116540438853325.

In-text references

References in the text use the author’s surname / corporate author’s name and year of publication, for example ‘(Barrett, 1991)’.

Where an author has two or more publications cited from the same year, the year of publication is followed by a lower-case ‘a’, ‘b’, ‘c’, etc., without a space, for example ‘(Barrett, 1991a)’:

… and is further discussed in the document Guidance on energy transmission infrastructure and EU nature legislation (European Commission: Directorate-General for Environment, 2018a).

In this case, the entries in the bibliography have the year in the second position, between brackets, and not in the last or second-last position:

European Commission (2018), ‘In-depth analysis in support of the Commission communication COM(2018) 773 – A clean planet for all – A European long-term strategic vision for a prosperous, modern, competitive and climate neutral economy’, 28 November, https://climate.ec.europa.eu/system/files/2018-11/com_2018_733_analysis_in_support_en.pdf.

European Commission: Directorate-General for Environment (2013), Guidelines on Wilderness in Natura 2000 – Management of terrestrial wilderness and wild areas within the Natura 2000 network, Publications Office of the European Union, Luxembourg, https://data.europa.eu/doi/10.2779/33572.

European Commission: Directorate-General for Environment (2018a), Guidance on energy transmission infrastructure and EU nature legislation, Publications Office of the European Union, Luxembourg, https://data.europa.eu/doi/10.2779/827210.

European Commission: Directorate-General for Environment (2018b), Guidance on the requirements for hydropower in relation to EU nature legislation, Publications Office of the European Union, Luxembourg, https://data.europa.eu/doi/10.2779/43645.

European Commission: Directorate-General for Environment (2019), Managing Natura 2000 Sites – The provisions of Article 6 of the ‘Habitats’ Directive 92/43/EEC, Publications Office of the European Union, Luxembourg, https://data.europa.eu/doi/10.2779/02245.

General

References to works with multiple authors cite all authors of the work when the total number of authors (including the corporate author) is five or fewer, or the first five authors and ‘et al.’ when the total number of authors exceeds five:

European Monitoring Centre for Drugs and Drug Addiction, Pirona, A., Atkinson, A., Sumnall, H. and Begley, E., Health Responses to New Psychoactive Substances, Publications Office of the European Union, Luxembourg, 2016, https://data.europa.eu/doi/10.2810/536519.

Jakimovski, D., Grozdanovski, K., Rangelov, G., Pavleva, V., Banović, P. et al., ‘Cases of Crimean-Congo haemorrhagic fever in North Macedonia, July to August 2023’, Eurosurveillance, Vol. 28, Issue 34, 2023, https://data.europa.eu/doi/10.2807/1560-7917.ES.2023.28.34.2300409.

For convenience, the usual abbreviations should be used: cont., p., Vol., etc. (see Annex A3). Any explanatory information, such as edition, place of publication, etc., should be given in English, even if the publication is only available in another language.