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Citing

Reference list, bibliography or works cited?

Three names for lists that are not the same thing, and one question that settles which you need.

The short answer, because most people arrive here needing exactly this:

Your styleWhat the list is calledWhat goes in it
APA 7ReferencesOnly what you cited
MLA 9Works CitedOnly what you cited
Chicago (author-date)ReferencesOnly what you cited
Chicago (notes-bib)BibliographyEverything relevant, cited or not
HarvardReference listOnly what you cited

The distinction that actually matters is not the name. It is whether the list includes things you read but never cited.

Reference list: only what you cited

A reference list is a lookup table. Every in-text citation in your essay must have an entry, and every entry must correspond to at least one in-text citation. It is a strict one-to-one relationship in both directions.

That second direction is the one students break. A source you read, found useful, decided not to quote, and left in the list is an error in APA, MLA and Harvard — not a bonus. The list is there so a reader can find the thing you cited, and an entry with nothing pointing at it has no job.

The test

Take any entry in your list. Can you find the place in your essay where it is cited? If not, delete it.

Take any in-text citation. Can you find its entry? If not, add it.

This is also the single most common source of lost marks in referencing, and it is mechanical rather than a matter of judgement — which means it is worth ten minutes at the end, every time.

Bibliography: what you read

A bibliography is a record of your reading. It can include works you consulted, found useful for background, or read and rejected, whether or not any of them appear in the text.

It survives mainly in Chicago’s notes-bibliography system, which is what history departments usually mean by Chicago. There, footnotes carry the citations and the bibliography at the back lists the sources — including some the footnotes never touch.

Some departments in the humanities also ask for one alongside a reference list, on the grounds that showing what you read is part of showing your work. If yours does, they will say so in the handbook. If it does not say so, you want a reference list.

Works cited: MLA’s name for a reference list

MLA calls it Works Cited, capitalised, and the name is the definition: works that were cited. Functionally it is a reference list.

MLA also recognises Works Consulted for the bibliography case — everything you read — but it is rare, and you should only use it if asked.

The three mistakes worth checking for

Padding the list

Adding sources you did not cite, on the theory that a longer list looks more researched.

Markers check. It takes seconds with a text search, and finding three entries with no in-text citation tells them something specific about how the essay was assembled. In APA, MLA and Harvard it is straightforwardly an error.

Citing something that is not in the list

The reverse, and much more common, because it happens by accident: you cite something in a draft, keep the citation through an edit, and the entry never got added.

This one is worse than padding, because a reader who wants to follow up cannot. It is also the failure a generator prevents best — if every source is captured as you read, nothing can be cited without an entry existing.

Mixing the naming with the style

An APA essay whose list is headed Bibliography, or an MLA essay headed References. Harmless in meaning, and immediately visible as a mistake to anyone who marks in that style. Use the heading your style specifies, spelled and capitalised the way it specifies it.

What about “further reading”?

A separate thing again, and legitimate where it is asked for. A further-reading list is explicitly not part of your referencing: it points a reader at where to go next. Keep it under its own heading, after the reference list, and do not let it blur into either of the other two.

Annotated bibliographies, which are a different task again

Increasingly set as an assignment in their own right, and often the first time students meet one it is worth 20% of a module.

An annotated bibliography is a bibliography where each entry is followed by a short paragraph — usually 100 to 200 words — about the source. What that paragraph should contain varies, and the brief will say, but it is normally some combination of three things:

Summary. What the source argues and how it argues it. Assessment. How credible or useful it is, and its limitations. Reflection. How it relates to your own project or to the other sources.

A workable shape

Sapolsky, R. M. (2017). Behave. Penguin Books.

Sapolsky synthesises neuroscience, endocrinology and primatology to argue that behaviour is best explained across multiple timescales at once. The breadth is the strength and the weakness: the coverage of hormonal influence is authoritative, while the political implications in the final chapters are more speculative than the evidence supports. Useful here for the framework rather than for any single finding.

The common mistake is writing a summary and calling it an annotation. A summary alone rarely earns full marks, because the assessment and the relevance are what demonstrate you have read critically rather than merely read.

Sources you read and rejected

A frequent question: you read fifteen articles, four were irrelevant, and you cite none of them. What happens to them?

In a reference list, nothing. They are not cited, so they do not appear. That is not waste — narrowing a field is the work.

In a bibliography, they belong, because a bibliography records what you consulted.

In a literature review, the good ones may deserve a sentence. “Studies of X have concentrated on Y; the effect on Z is largely unexamined” is a claim about a field that you can only make because you read the fifteen, and it is often the most valuable sentence in a review. At that point they are cited, and they return to the reference list by the front door.

Keep them somewhere regardless. Rejected sources have a way of becoming relevant when the argument shifts in week nine, and finding one twice is slower than never losing it. Our citation generator keeps everything you add in your browser, so a source captured early is still there whether or not it survived the cut.

Ordering and formatting

All three are alphabetical by the author’s surname in every style discussed here. The differences are in the details:

  • APA and Harvard use sentence case for titles and put the year straight after the author
  • MLA uses title case and puts the date at the end
  • Chicago’s bibliography uses title case and inverts only the first author’s name

Each style also has a rule for a source with no author, which is where the alphabetising gets interesting — the title takes the author’s place, so it is the title you alphabetise by. Our guide on citing a website with no author covers what happens to the entry itself.

Getting the list out

Once your sources exist as structured data — author, title, year, publisher — producing any of these lists is mechanical. Our citation generator holds sources that way and renders the list in APA 7, MLA 9, Chicago or Harvard, with the right heading and the right ordering for each, and switching style rewrites the whole list at once.

It also imports from RIS and BibTeX, so references already in Zotero, Mendeley or EndNote come across rather than being retyped.

One caution that applies to every generator: read the finished list before you submit. Automatic sentence case cannot reliably tell a proper noun from an ordinary word, and it is your name on the essay.