IEEE Referencing: A Complete UK Guide for Students (2026)

IEEE referencing is a numbered citation style used in engineering, computer science and electronics. You cite sources with bracketed numbers such as [1] in the order they first appear in your text, and list the full details in a numbered reference list at the end in that same order. It is the standard style for most UK engineering and computing courses.

Key takeaways

• IEEE stands for the Institute of Electrical and Electronics Engineers.
• It is a numeric style: cite with on-the-line brackets, e.g. [1], [2].
• Sources are numbered in order of appearance and reused thereafter.
• The reference list is ordered by citation number, not alphabetically.
• In the reference list, author initials come before the surname.

What is IEEE referencing?

IEEE referencing is the citation style defined by the Institute of Electrical and Electronics Engineers for technical writing. Rather than naming authors in the text, you insert a bracketed number that links to a full entry in a numbered reference list. This keeps equations and technical prose readable, which is why engineering and computing departments require it.

How do IEEE in-text citations work?

Place the number in square brackets on the line, before the punctuation, e.g. “as shown in [1].” Number sources in the order they first appear and reuse the same number for later citations. Cite several sources as [1], [3], [5] or a range as [2]–[4].

How do you format an IEEE reference list?

List references by number in citation order. Common formats:

• Journal: [1] A. B. Author, “Title of article,” Abbrev. Journal Name, vol. 12, no. 3, pp. 45–52, Mar. 2021.
• Book: [2] C. D. Author, Title of Book, 3rd ed. London, UK: Springer, 2019.
• Conference: [3] E. F. Author, “Paper title,” in Proc. IEEE Int. Conf. on Computing, 2020, pp. 10–15.

Quick IEEE referencing examples

IEEE vs Harvard referencing: what is the difference?

IEEE is numeric and orders references by citation, while Harvard is author–date and orders them alphabetically. Engineering and computing courses use IEEE; business and social sciences usually use Harvard. Always confirm with your module handbook.

Common IEEE referencing mistakes to avoid

• Using superscript instead of on-the-line brackets [1].
• Ordering the reference list alphabetically rather than by number.
• Giving a source a new number on each citation.
• Writing surnames before initials in the reference list.

For broader support, see our guides on how to write an essay and how to write coursework, and the official rules in the IEEE Reference Guide at ieee.org. For specialist help, Projectsdeal offers engineering assignment help, engineering dissertation help and a dissertation editing service.

Frequently asked questions about IEEE referencing

Is IEEE referencing numbers or author-date?

IEEE referencing uses numbers in square brackets. Sources are numbered in the order they appear and the reference list follows that numeric order.

What subjects use IEEE referencing?

IEEE referencing is used mainly in engineering, computer science, electronics, telecommunications and information technology.

Are IEEE citations superscript?

No. IEEE citations use square brackets on the line, such as [1], placed before the punctuation, not as superscript numbers.

IEEE Referencing Format: Detailed Examples for UK Students

Understanding the IEEE format requires familiarity with how different source types are cited. The core principle is that each source is assigned a number in the order it first appears in your text, and the full reference for that source appears at the same number in your reference list. The in-text citation is simply the number in square brackets — for example, [1] — appearing at the point in the text where the source is referred to. If the same source is cited again later in the text, the same number is used again.

For a journal article in IEEE format, the reference list entry follows this pattern: Author Initials. Surname, “Title of article in quotation marks,” Journal Name in Italics, vol. volume, no. issue, pp. page range, Month Year. For example: A. Smith and B. Jones, “Machine learning approaches to predictive maintenance,” IEEE Transactions on Industrial Informatics, vol. 18, no. 4, pp. 2451–2460, Apr. 2022. Note that author initials precede the surname, the article title is in quotation marks (not italics), and the journal name is italicised.

For a book, the IEEE reference format is: Author Initials. Surname, Book Title in Italics, edition (if not first). City: Publisher, Year. For example: S. Haykin, Neural Networks and Learning Machines, 3rd ed. Upper Saddle River, NJ: Pearson Education, 2009. Conference papers follow a similar format to journal articles but include the conference name and location: Author Initials. Surname, “Article title,” in Proc. Conference Name, City, Country, Year, pp. page range.

Common IEEE Referencing Mistakes to Avoid

Several errors recur in IEEE-referenced work submitted by engineering and computing students at UK universities. The most common is inconsistent number ordering — assigning numbers to sources in a different order than they first appear in the text. IEEE citations must be numbered sequentially from first appearance: the first source cited in your text is [1], the second new source is [2], and so on. Students who add references out of order, or who renumber their reference list without updating in-text citations, frequently produce numbered citations that do not match their reference list, which is a basic formatting error that examiners will note.

A second common mistake is incorrect formatting of author names. IEEE uses initials then surname, separated by a period and a space: A. Smith. If a source has multiple authors, they are separated by commas with “and” before the final author: A. Smith, B. Jones, and C. Williams. Students frequently copy references from databases in different citation styles and forget to reformat the author names for IEEE, resulting in inconsistent entries in their reference list.

Students also often struggle with online sources and web pages, which require a slightly different format in IEEE. For a web page, the format is: Author Initials. Surname. (Year, Month Day). Title of page. [Online]. Available: URL. [Accessed: Month Day, Year]. The inclusion of both a publication date and an access date is important for web sources, as web content can change. If no author is named, begin with the title of the page. Many students omit the access date for web sources, which is required in IEEE to acknowledge the time-sensitive nature of online material.

Finally, be careful with the capitalisation rules for IEEE. Unlike Harvard or APA, IEEE capitalises only the first word of article and chapter titles (and proper nouns), but capitalises all major words in journal and book titles — the opposite of APA convention. Mixing up these capitalisation rules when formatting a reference list that contains multiple source types is a frequent source of errors. Take time to review each entry carefully before submitting any work that uses IEEE referencing, or use a reference management tool such as Zotero or Mendeley configured for the IEEE style to reduce the risk of formatting errors.