Mistakes Checklist
Common Chicago Book Citation Mistakes
Published studies report citation/reference error rates between 25-54%. Use this page to catch the most frequent formatting failures before submission.
Top mistakes to avoid
- ⚠Omitting the place of publication
- ⚠Using sentence case instead of headline case
- ⚠Forgetting to italicize the title
- ⚠Not including edition information
Wrong vs correct examples
Missing place of publication
Wrong
Turabian, Kate L. *A Manual for Writers.* 9th ed. University of Chicago Press, 2018.
Correct
Turabian, Kate L. *A Manual for Writers.* 9th ed. Chicago: University of Chicago Press, 2018.
Chicago style requires the city of publication before the publisher name, unlike APA 7 and MLA 9.
Sentence case for title
Wrong
Turabian, Kate L. *A manual for writers of research papers.* Chicago: UCP, 2018.
Correct
Turabian, Kate L. *A Manual for Writers of Research Papers.* Chicago: UCP, 2018.
Chicago uses headline-style capitalization (title case). Capitalize all major words in the title.
Missing edition information
Wrong
Turabian, Kate L. *A Manual for Writers.* Chicago: University of Chicago Press, 2018.
Correct
Turabian, Kate L. *A Manual for Writers.* 9th ed. Chicago: University of Chicago Press, 2018.
If not citing the first edition, include the edition number. Use "2nd ed.," "3rd ed.," etc.
Mistake frequency snapshot
Fix checklist
- ✓Italicize book titles
- ✓Include place of publication
- ✓Use headline-style capitalization
- ✓Add edition number if not the first
Frequently asked questions
How do I cite a book in Chicago style?
Chicago style uses two systems for book citations. In the notes-bibliography system (common in humanities), the bibliography entry is: Last, First. Title of Book. Edition. Place: Publisher, Year. For example: Turabian, Kate L. A Manual for Writers. 9th ed. Chicago: University of Chicago Press, 2018. The first footnote uses: First Last, Title of Book (Place: Publisher, Year), page. In the author-date system (common in sciences), the reference list entry is: Last, First. Year. Title of Book. Edition. Place: Publisher. The in-text citation is (Last Year, page). Both systems require the city of publication — unlike APA 7 and MLA 9, which dropped this requirement. Italicize the book title and use headline-style capitalization (title case) for all major words.
How do I cite an e-book in Chicago style?
For e-books, start with the standard book citation format and then add the e-book information at the end. If the e-book has a DOI, include it as a URL: https://doi.org/10.xxxx. If accessed on a specific platform with no DOI, add the platform name: "Kindle edition" or "Apple Books edition." If accessed via a URL, include the full URL at the end. For example: Newport, Cal. Deep Work. New York: Grand Central Publishing, 2016. Kindle edition. If the e-book has different pagination than the print version, note "unpaginated" or use chapter/section numbers in your in-text citation instead of page numbers.
How do I cite a book with multiple authors in Chicago?
For 2–3 authors, list all names in the bibliography. The first author is inverted (Last, First), and subsequent authors are in normal order: Smith, John, and Maria Garcia. Title. Place: Publisher, Year. For 4 or more authors, the bibliography lists all authors, but footnotes and in-text citations use only the first author followed by "et al." In footnotes: John Smith et al., Title (Place: Publisher, Year), page. In the author-date system: (Smith et al. 2024, 45). Note that "et al." is not italicized. For edited volumes with multiple editors, use the same pattern but add "ed." or "eds." after the names.
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