The principles are shared; the punctuation is not. Get the punctuation right and your reader trusts everything else.
Author–date. HASS, education, and business. The reader sees who and when at the citation.
Numbered. Engineering and computer science. Keeps technical prose uncluttered.
Author–page. Literature and languages. A Works Cited list at the end.
Consistency is the whole game. Inconsistent punctuation reads as carelessness, and quietly costs marks across the bibliography.
An author–date system. Once you have the pattern, the rest is decoration, two in-text shapes, and one well-formatted list.
Vary them. A page of pure parenthetical citations reads as a brick wall; narrative citations put the author into your sentence.
| Authors | Parenthetical | Narrative |
|---|---|---|
| One | …is now standard (Park, 2024). | Park (2024) argues that… |
| Two | …was observed (Choi & Lee, 2023). | Choi and Lee (2023) observed… |
| Three or more | …is confirmed (Kim et al., 2025). | Kim et al. (2025) confirmed… |
| Direct quotation | “…the real driver” (Park, 2024, p. 14). | Park (2024) calls it “the real driver” (p. 14). |
Which of your sources is hardest to format, and why that one?
Numerical, not author–date. The body reads cleaner; the references list does the heavy lifting at the end.
“Machine learning improves real-time performance [1].”
“Park and Lee in [1] showed that…”
IEEE favours the non-integral form, the focus belongs on the finding, not the finder.
| APA | IEEE |
|---|---|
| Park, J., & Lee, H. (2024). Solid-state electrolytes: A review. Journal of Power Sources, 588, 233742. | [1] J. Park and H. Lee, “Solid-state electrolytes: A review,” J. Power Sources, vol. 588, Art. no. 233742, 2024. |
| Smith, J. (2020). Understanding psychology (2nd ed.). Academic Press. | [2] J. Smith, Understanding Psychology, 2nd ed. New York, USA: Academic Press, 2020. |
| Aspect | APA | IEEE |
|---|---|---|
| In-text | Author–date: (Smith, 2020) | Numerical: [1] |
| Order | Alphabetical by first author | By order of first appearance |
| Indent | Hanging indent | No hanging indent |
| Repeat cite | Same author–date pair | Same number reused |
| Author name | Surname, then initials | Initials, then surname |
Same author-led logic; three things change, in-text is author–page, the list is titled Works Cited, and the year moves to the end.
| Element | APA 7 | MLA 9 |
|---|---|---|
| In-text | (Smith, 2020, p. 25) | (Smith 25) |
| List title | References | Works Cited |
| Journal entry | Taylor, R., & Lee, K. (2019). Advances in neural networks. Neural Computing, 15(3), 45–67. | Taylor, Rachel, and Kyung Lee. “Advances in Neural Networks.” Neural Computing, vol. 15, no. 3, 2019, pp. 45–67. |
If the professor doesn't specify: APA for business & social science, MLA for literature, IEEE for engineering.
Format raw source details into your discipline's style, getting the italics, punctuation, and order exactly right.
Write each entry in APA 7 (HASS/Business) or IEEE (STEM). Mind the italics, punctuation, and order.
Swap lists. Hunt only for the five mark-costers, mismatched cites, stray italics, inconsistent punctuation.
Chapters 11 to 12, pages 49 to 55, including every source-type template, the trickier APA entries, the “same source, both styles” page, and the MLA comparison (§11.4).
Chapters 11 & 12 · Next, paraphrasing & reporting verbs