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Citations 6 min read September 18, 2026

How to Cite Sources Correctly: APA, MLA & Chicago Guide

Master referencing guidelines across major academic citation formats to prevent plagiarism and ensure scholarly attribution in essays, dissertations, and theses.

E
Engr. Babatunde Olatunji
Senior Research Fellow

Why Citation Accuracy Matters

Citing sources is more than an academic formality—it establishes the credibility of your scholarship, honors intellectual property, and enables peers to retrace your research trail. Inaccurate or missing citations are the #1 cause of unintentional plagiarism flags in university submissions.

Overview of Major Academic Citation Styles

1. APA Style (7th Edition)

Widely used across Social Sciences, Psychology, Business, Education, and Engineering:

  • In-Text Format: Author-Date format: (Okonkwo, 2024) or Okonkwo (2024) demonstrated that...
  • Reference Entry:
  • > Okonkwo, C. A. (2024). Artificial Intelligence in Higher Education. University Press.

    2. MLA Style (9th Edition)

    Predominantly used in Humanities, Literature, Languages, and Cultural Studies:

  • In-Text Format: Author-Page format: (Adebayo 45).
  • Works Cited Entry:
  • > Adebayo, Kemi. Modern Nigerian Literary Traditions. Lagos University Publishers, 2023.

    3. Chicago / Turabian Style

    Common in History, Philosophy, and Fine Arts:

  • Uses numbered footnotes or endnotes with complete bibliographical citations at the bottom of the page.
  • Common Referencing Pitfalls to Avoid

    1. In-Text Orphan References: Citing an author in your paragraph but forgetting to include their full publication details in the terminal reference list. 2. Reference List Ghost Entries: Listing a source in the bibliography that was never actually cited anywhere in your document text. 3. Secondary Citation Confusion: Citing an author who quoted another author without clearly indicating the secondary nature of the source (e.g., Smith, 2018, as cited in Adeleke, 2023).

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