The Essential Guide to Citing Digital Object Identifiers (DOIs)

In the realm of academic and professional writing, citing sources accurately is crucial to maintaining the integrity of your work and acknowledging the contributions of other researchers. The introduction of the Digital Object Identifier (DOI) has revolutionized the way scholars and researchers access and cite digital content. This article provides a comprehensive guide on how to cite DOIs effectively across various citation styles.

What is a DOI?

A DOI is a unique alphanumeric string assigned to a digital object, such as a journal article, research report, or any form of academic content. It provides a permanent internet link to the object, ensuring that even if the URLs change, the document can always be easily found. The DOI system is managed by the International DOI Foundation, and it helps in the reliable management and identification of digital content.

Why Cite a DOI?

Citing a DOI is important for several reasons:

  • Permanence: Unlike URLs, which can change or become inactive over time, a DOI remains linked to the document forever, thereby avoiding the issue of broken links in your work.
  • Ease of Access: A DOI link leads directly to the content, making it easier for readers to access the source material instantly.
  • Professionalism: Using DOIs in citations reflects thoroughness and precision in research, which enhances the credibility of your work.

How to Cite a DOI in Different Citation Styles

The method for citing a DOI varies slightly depending on the citation style being used. Here are guidelines for some of the most commonly used citation styles:

  1. APA Style (7th Edition)

    • Format: Author(s). (Year). Title of the work. Publisher. DOI
    • Example: Smith, J. (2020). Climate Change and Coastal Erosion. Journal of Earth Science, 56(1), 34-56. https://doi.org/10.1234/abc123
  2. MLA Style (8th Edition)

    • Format: Author(s). "Title of the Work." Title of Container, Other Contributors, Version, Number, Publisher, Publication Year, DOI.
    • Example: Smith, John. "Climate Change and Coastal Erosion." Journal of Earth Science, vol. 56, no. 1, 2020, pp. 34-56. https://doi.org/10.1234/abc123
  3. Chicago Style (17th Edition)

    • Note: Author(s) First Name Last Name, Title of Work (Publisher, Year), page number, DOI.
    • Bibliography: Last Name, First Name. Title of Work. Publisher, Year. DOI.
    • Example:
  4. IEEE Style

    • Format: [Number] Author(s) Initials, Surname, "Title of paper," Title of Periodical, vol., no., pp., Month, year, DOI.
    • Example: [1] J. Smith, "Climate Change and Coastal Erosion," J. Earth Sci., vol. 56, no. 1, pp. 34-56, Jan. 2020, https://doi.org/10.1234/abc123

Best Practices for Citing DOIs

  • Always use the DOI when available. It is the most reliable link to your source.
  • Use the "https://doi.org/" prefix when citing a DOI.
  • Check the DOI link before submitting your work to ensure it directs correctly to the intended source.
  • Follow specific citation guidelines required by your institution or publisher.

Using DOIs in citations not only enhances the professionalism of academic writing but also supports the academic community by providing reliable and efficient access to source materials. By adhering to these guidelines, you can ensure that your citations are both accurate and useful to readers and researchers alike.