Chicago Style Citation Made Easy: Footnotes, Bibliography, and Examples

Chicago Notes-Bibliography style intimidates students because footnotes look unfamiliar compared to APA parenthetical citations. In practice, Chicago footnotes follow predictable templates. Once you learn the pattern for books, journal articles, and websites, citing in history, literature, and humanities research becomes systematic. This guide makes Chicago citation approachable with step-by-step instructions, side-by-side footnote and bibliography examples, and troubleshooting for the errors supervisors flag most often.

How footnotes work in Chicago NB

Insert a superscript number at the end of the sentence containing the cited material—after punctuation. Word, Google Docs, and LaTeX generate footnote numbers automatically. The corresponding note appears at the bottom of the page (footnote) or end of the document (endnote). Never manually type superscript numbers; adding or deleting citations will break your sequence.

First footnote: book example

Text: 'Historians have debated the causes of the revolt for decades.¹' Footnote: '1. Eric Hobsbawm, The Age of Revolution: 1789–1848 (London: Abacus, 1962), 112.' Components: author first name first, title italicised, publication city, publisher, year in parentheses, comma, page number.

Shortened footnote: same book later

Footnote: '2. Hobsbawm, Age of Revolution, 145.' Use author surname, shortened title (drop subtitle often), page only. Chicago 17 prefers shortened notes over 'ibid.' for clarity when multiple sources are active.

Bibliography entry: same book

Hobsbawm, Eric. The Age of Revolution: 1789–1848. London: Abacus, 1962. Bibliography inverts author name (surname first), drops page numbers, and ends with a period. Every source in footnotes should appear in the bibliography.

Journal article: footnote and bibliography

First footnote: '3. Judith Butler, "Performative Acts and Gender Constitution," in Writing on the Body, ed. Katie Conboy (New York: Columbia University Press, 1997), 402.' Journal article footnote: '4. Homi K. Bhabha, "The Other Question," Critical Inquiry 12, no. 1 (1985): 18.' Bibliography: 'Bhabha, Homi K. "The Other Question." Critical Inquiry 12, no. 1 (1985): 18–36.'

Website citation in Chicago NB

Footnote: '5. World Health Organization, "Climate Change and Health," accessed March 15, 2026, https://www.who.int/health-topics/climate-change.' Bibliography: 'World Health Organization. "Climate Change and Health." Accessed March 15, 2026. https://www.who.int/health-topics/climate-change.' Include access dates for sources without clear publication dates.

When to footnote vs when to embed

Footnote every paraphrase, quotation, and specific claim drawn from a source. General knowledge in your field does not need citation. Discursive footnotes—where you comment on a source's reliability or compare editions—are a Chicago strength; use them when analysis enriches the narrative.

Direct quotations in Chicago

Short quotes integrate into the text with double quotation marks and a footnote. Block quotes (typically five lines or more in prose) indent without quotation marks, with the footnote number after the final punctuation. Always include page numbers in notes for quoted material.

Multiple sources in one footnote

Separate with semicolons: '6. Hobsbawm, Age of Revolution, 112; Butler, "Performative Acts," 402.' Order may be chronological, alphabetical, or by importance—consistency matters.

Building your bibliography efficiently

1. 1Collect full bibliographic data when you first read each source.
2. 2Use Zotero or Mendeley with Chicago 17th NB output style.
3. 3Generate bibliography automatically but verify punctuation and capitalisation.
4. 4Sort alphabetically by author surname; use title for no-author sources.
5. 5Use em dashes for repeated author entries after the first.

Footnote troubleshooting in Word

• Footnote numbering resets per chapter in some thesis templates—configure section breaks carefully.
• Pasting text from web sources can break footnote links—reinsert notes if numbers go out of sync.
• Convert endnotes to footnotes via References tab if your department requires page-bottom notes.
• Check font size: footnotes are typically 10pt while body is 12pt.

Common Chicago footnote mistakes

• Missing page numbers for quotations.
• Using bibliography format inside footnotes (author order differs).
• Inconsistent shortened titles across the document.
• Footnoting after the period in one place and before in another—always after punctuation.
• Forgetting to include web access dates.

Professional Chicago footnote formatting

Chicago theses with hundreds of footnotes reward expert formatting review. Professional services verify note numbering, bibliography cross-checks, and Chicago 17 punctuation—preventing the citation errors that delay humanities thesis approval.