Citation style guide

IEEE numeric

IEEE identifies sources with bracketed numbers and lists references in the order they first appear.

Format my references

The essentials

How IEEE works

COMMONLY USED BY

Electrical engineering, computing, electronics, telecommunications and technical publishing.

IN-TEXT PATTERN

Use a bracketed number: Recent work shows this pattern [1]. Refer to a range as [2]–[4].

LIST HEADING

References

ORDER

Numerical order of first appearance—not alphabetical order.

Direct quotations

Use the source number and, when needed, a page locator such as [3, p. 42].

Copy the pattern, verify the facts

IEEE reference examples

Journal article

[1] S. I. Patel and A. Khan, “Digital research habits among university students,” Journal of Learning Practice, vol. 18, no. 2, pp. 44–59, 2025.

Book

[2] L. Rahman, Research Skills for Modern Learners. London, U.K.: Horizon Academic, 2024.

Website

[3] National Research Council, “Evaluating online evidence,” Mar. 12, 2026. [Online]. Available: https://example.org/evidence. [Accessed: Aug. 20, 2026].

These examples use invented publication details to demonstrate structure. Replace every element with information from your actual source.

Review before submission

Common mistakes

  • Alphabetising the reference list.
  • Renumbering a repeated source instead of reusing its original number.
  • Putting citation numbers in parentheses.
  • Omitting volume, issue or page details from journal articles.
  • Using inconsistent abbreviated journal titles.

Final review

IEEE checklist

  • Numbers follow first appearance.
  • Repeated sources reuse the same number.
  • Author initials precede surnames.
  • Online sources include access information when required.
  • Every bracketed number maps to one reference.
Check the authority

Course, institution and publisher rules can override general examples.

IEEE Reference Guide

Apply the guide

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