Following citation styles is critical in academic writing for keeping academic integrity and assuring the authenticity of your work.
Citation styles define how to reference sources, citations, and bibliographies. We’ll look at this article’s top six citation styles: APA, MLA, Harvard, Chicago, IEEE, and Vancouver.
Understanding these styles can help you manage the varying needs of other fields and generate high-quality, well-cited documents.
Table of Contents
Importance of Citation in Academic Writing
Citations are extremely important in academic writing since they serve several key functions. They offer original authors proper credit, demonstrating respect for their work and allowing users to locate the source of information.
Citations help writers avoid plagiarism by correctly attributing any external information. Citing sources also increases the trustworthiness of the writer’s work by substantiating statements and arguments with proof from credible sources.
Furthermore, citations stimulate additional study by allowing readers to investigate relevant topics and expand on prior knowledge. Proper citations in academia reflect academic rigour and honesty while also assisting the peer-review process.
By acknowledging sources, authors contribute to a larger scholarly conversation, encouraging collaboration and sharing ideas.

APA Style
The American Psychological Association style is often employed in the social sciences. It incorporates in-text parenthetical citations and a reference list. The author’s last name and the date for the specified publications are required for this in-text citation.
The APA style uses several layers of headings to organize the content of a paper. Levels are formatted differently, with higher levels taking precedence over lower levels. These are the levels:
- Level 1: Content that is centred, boldfaced, uppercase and lowercase.
- Level 2: Left-aligned headings with boldface, uppercase and lowercase letters.
- Level 3: Indented, boldface, lowercase headings, with a period at the conclusion.
- Level 4: Indented, boldface, italicized, lowercase headings, with a period at the conclusion.
- Level 5: Indented, italicized, lowercase headings, and a period at the conclusion.
- Level 6: Indented, italicized, lowercase headings, followed by a period, followed by text
Tables and figures are also formatted differently in APA style. Tables should be labelled with a number and a descriptive title. Figures should also be numbered and contain a caption that describes the figure’s content.
MLA Style
The Modern Language Association style is often employed in the humanities. It contains in-text parenthetical citations and a works cited page. The author’s last name and page number 1 are required elements for this in-text citation.
For formatting quotations, the MLA style has precise standards. Short quotations (fewer than four lines of prose or three lines of poem) should be included in the text and surrounded by quotation marks. Long quotations (more than four lines of prose or three lines of poem) should be indented 1 inch from the left margin and set off in a block. MLA style also provides formatting standards for headings, which are identical to the APA style.
Harvard Style
The Harvard style, often known as the author-date referencing system, is widely employed in the sciences and social sciences. It has in-text citations and a reference list along with it. The author’s last name and publication date are required for this in-text citation.
For formatting references, the Harvard style has precise standards. The author’s last name should alphabetize the reference list. Each object should contain the author’s name, the year the work was published, the title of the work, and publication components. Harvard style contains formatting standards for headings similar to the APA style.
Chicago Style
In the humanities and social sciences, the Chicago style is extensively employed. It has footnotes or endnotes along with a bibliography. The author’s last name, the source’s title, and the page number are needed for this in-text citation.
Footnotes and endnotes are formatted differently in Chicago style. Endnotes are put at the end of the chapter or paper, while footnotes are put at the bottom of the page. Throughout the document, each note should be sequentially numbered. Chicago style features header formatting standards that are similar to the APA style.
IEEE Style
Institute of Electrical and Electronics Engineers’ writing style is mostly used in engineering and computer science. It has in-text citations as well as a reference list. The author’s last name and the source number are needed for this in-text citation.
For formatting references, the IEEE style contains precise standards. The reference list should be organized numerically by the order in which they appear in the text. Each item should include the author’s name, the work’s title, publication details, and the source number. IEEE style contains formatting standards for headings similar to the APA style.
Vancouver Style
The Vancouver style is frequently utilized in medicine and science. It contains in-text citations as well as a reference list. The author’s last name and the source number are required elements for this in-text citation.
For formatting references, the Vancouver style has certain standards. The reference list should be organized numerically by the order in which they appear in the text. Each item should include the author’s name, the work’s title, publication details, and the source number. Similar to the APA style, the Vancouver style provides requirements for formatting headings.

How to Choose the Appropriate Citation Style for Your Writing
Consider Your Academic subject
Each academic subject has its preferred citation style. MLA, for example, is commonly used in the humanities, whereas APA is used in psychology and social sciences. To discover the right style for your profession, visit your lecturers or publication requirements.
Check for Institutional Requirements
Educational institutions and organizations may have different citation requirements. Always review and adhere to their requirements to avoid avoidable mistakes and plagiarism difficulties.
Recognize the Details
Each citation style has formatting standards for in-text citations, reference lists, and other features. To have accuracy and consistency in your writing, familiarise yourself with the precise standards of your chosen style.
Citation Management Tools
Consider adopting citation management software such as EndNote, Zotero, or Mendeley to make the citation process easier. These tools can help you efficiently organize your sources, generate citations, and construct reference lists.
Conclusion
Citation styles are an important component of academic writing. They give a consistent method of citing sources and crediting the original writers. The top six professional writing citation formats are APA, MLA, Harvard, Chicago, IEEE, and Vancouver.
Each style has its own set of rules and restrictions, and selecting the style suited for your subject of study is critical.
Understanding the subtleties of these styles and following their requirements will allow you to write well-referenced and trustworthy work that maintains academic integrity. Remember the importance of selecting the appropriate style for your writing environment and using citation management tools to make the process easier. Good luck with your writing!

References:
- “How to cite a website – in MLA, Harvard & APA – SciFlow.” SciFlow. Accessed July 28, 2023. https://www.sciflow.net/en/correct-citation/how-to-cite-a-website.
- “Citation Styles — APA, MLA, etc.: Harvard Referencing Style – Marquette University.” Marquette University. Accessed July 28, 2023. https://libguides.marquette.edu/c.php?g=36647&p=5430407.
- “Chicago Style.” The Chicago Manual of Style Online. Accessed July 28, 2023. https://www.chicagomanualofstyle.org/home.html.
- “APA – Citations – Research Guides at Harvard Library.” Harvard Library. Accessed July 28, 2023. https://guides.library.harvard.edu/schlesinger/citation_guide/apa.
- “Frequently Asked Questions About Cite Sources in APA Format.” Harvard College Writing Program. Accessed July 28, 2023. https://usingsources.fas.harvard.edu/frequently-asked-questions-about-cite-sources-apa-format.
- “Academic Writing Styles: APA, MLA, HARVARD & CHICAGO | Udemy.” Udemy. Accessed July 28, 2023. https://www.udemy.com/course/academic-writing-styles-apa-mla-harvard-chicago/.