Thesis bibliography: rules, styles and real examples

The bibliography is the part of the thesis that the graduation committee checks last and most closely. It is where they can tell whether you truly read your sources, whether you have a panoramic grasp of the field, whether you integrated Italian and international literature. A well-built bibliography — clean entries, a consistent style, relevant sources — signals academic seriousness before a single word about the content is spoken.

There is also a legal reason: every idea, figure, quotation or concept that is not originally yours must be attributed to its source. Failing to do so, even out of forgetfulness, constitutes plagiarism. Italian universities use anti-plagiarism software (Compilatio, Turnitin, Urkund) that detects both direct copy-paste and superficial paraphrasing. A correct citation also protects you from suspicion.

This guide is meant to be consulted while you write, not studied from scratch. Jump straight to the style you need, copy the pattern, swap in your own data. And if the bibliography feels like an unclimbable mountain, at the end of the guide you will find the tools (Zotero, Mendeley) that generate it automatically from your PDFs.

There is no "best" style in absolute terms: there is the one conventionally used in your discipline. Always check your degree programme's regulations, but the map below covers 95% of cases at Italian universities.

The author-date system of the American Psychological Association. It is the most widespread style in Italy for psychology, sociology, economics and education sciences. In the text you cite "(Rossi, 2024)" or "(Rossi, 2024, p. 124)" for direct quotations; in the bibliography, entries are ordered alphabetically by surname.

The style of the University of Chicago Press, dominant in Italian humanities theses (history, philosophy, literature). There are two variants: notes and bibliography (the most used in the humanities) and author-date (more used in the social sciences). Here we show the first: the full citation goes in a footnote, while the bibliography entry is slightly different.

Four more specialised styles, each dominant in its disciplinary niche. Here is an example for the most frequent cases; for the full detail of each style, consult the official guide (the most recent version is always the valid one).

Languages, literature, text-based humanities studies. In-text citation: "(Rossi 124)".

Engineering, computer science, physics. In-text citation: number in square brackets [1], [2].

Economics, management, business. In-text citation: "(Rossi, 2024)".

Medicine, biology, health sciences. In-text citation: sequential number (1), (2) or superscript.

Three ways to bring another author's voice into your thesis, each with different rules:

1. Direct quotation (verbatim) — You reproduce the source's words exactly. It goes inside guillemets «...» or quotation marks "..." depending on the style, always with a reference AND a page number. If the quotation runs longer than 4 lines, it becomes a "block quote", indented, without quotation marks, in a reduced font size (11 pt) and single line spacing.

2. Indirect quotation (paraphrase) — You restate another author's thought in your own words. It must always be attributed with a reference, but usually without a page number (unless the concept sits at a precise point). The rule: it must be a REAL paraphrase, a change of syntactic structure and vocabulary — not the swap of 2-3 words.

3. General reference — When you point to an entire work for general concepts or further reading. It goes at the end of a paragraph or in a note, with the reference but no specific page. Example: "There is an extensive literature on the subject (Rossi, 2024; Bianchi, 2023; Verdi, 2021)."

A practical rule: every 3-4 paragraphs should carry at least one reference. If you are on page 78 and haven't cited anyone since page 75, something is off: either you are not engaging with the literature, or you are forgetting to cite it.

Managing 100+ bibliographic entries by hand in Word is masochism. Every researcher uses a reference manager: software that saves your sources, organises them and formats them automatically in the chosen style. Three concrete options:

For a normal thesis, free Zotero is more than enough. Install it at the start of the thesis, save sources as you read them, and at the end you generate the bibliography in 3 clicks in whatever format you want. Changing style (from APA to Chicago, say, if your supervisor changes their mind) takes 30 seconds.

Mistakes that examiners spot in the first 30 seconds of flipping through. A quick checklist before submission saves you from remarks during the defence.