Introduction
Writing a bibliography in Chicago style can feel intimidating at first, but once you understand its two main documentation systems—Notes and Bibliography (NB) and Author‑Date—the process becomes straightforward. This guide walks you through every step, from selecting the correct Chicago variant to formatting books, journal articles, websites, and more. By the end, you’ll be able to create a polished bibliography that meets the expectations of academic journals, history theses, and any other project that requires Chicago citation.
Why Choose Chicago Style?
- Flexibility: Chicago accommodates a wide range of source types, making it popular in the humanities, especially history, literature, and the arts.
- Clarity: The NB system separates footnotes/endnotes from the bibliography, allowing readers to locate source details without cluttering the main text.
- Consistency: With clear rules for punctuation, capitalization, and italics, Chicago provides a uniform look that enhances the credibility of your work.
Chicago Documentation Systems Overview
| System | When to Use | In‑text cue | Bibliography format |
|---|---|---|---|
| Notes and Bibliography (NB) | Humanities, monographs, dissertations | Superscript footnote/endnote number | Full citation in a separate bibliography page |
| Author‑Date | Social sciences, natural sciences, some interdisciplinary fields | (Author year) within the text | Reference list alphabetized by author |
If your instructor or publisher does not specify which system to use, the NB style is often the default for Chicago.
General Bibliography Formatting Rules
-
Page layout
- Title the page Bibliography (centered, no bold or underline).
- Use 12‑point Times New Roman or a comparable serif font.
- Double‑space the entire bibliography, but insert a single blank line between entries.
-
Alphabetization
- Order entries alphabetically by the author’s last name.
- For works with no author, alphabetize by the first significant word of the title (ignore A, An, The).
-
Hanging indent
- Apply a 0.5‑inch hanging indent for each entry (the first line flush left, subsequent lines indented).
-
Italics vs. quotation marks
- Books, journals, and websites: italicize the title.
- Articles, chapters, and essays: place the title in quotation marks and italicize the container (journal or book).
-
Punctuation
- Use a period after the author’s name, the title, and the publication information.
- Separate elements with commas and colons as shown in the examples below.
Step‑by‑Step Guide to Formatting Common Sources
1. Books
Basic format:
Last Name, First Name. *Title of Book*. Place of Publication: Publisher, Year.
Example:
Smith, John. *The Rise of Urban Planning*. New York: Routledge, 2020.
Multiple authors: List up to three authors in normal order; for four or more, list the first author followed by et al.
Brown, Lisa, Michael Green, and Sarah White. *Cultural Landscapes*. Chicago: University of Chicago Press, 2018.
Edited volume:
Last Name, First Name, ed. *Title of Collection*. Place: Publisher, Year.
Example:
Kelley, Thomas, ed. *Perspectives on Modernism*. Boston: Beacon Press, 2015.
2. Book Chapters or Essays in an Edited Collection
Format:
Last Name, First Name. “Title of Chapter.” In *Title of Book*, edited by Editor First Name Last Name, page range. Place: Publisher, Year.
Example:
Garcia, Maria. “Narratives of Migration in 19th‑Century Europe.” In *Historical Essays*, edited by Robert L. Turner, 112‑35. London: Palgrave, 2019.
3. Journal Articles
Format:
Last Name, First Name. “Title of Article.” *Title of Journal* volume number, no. issue number (Year): page range.
Example:
Lee, Daniel H. “Digital Archives and Public History.” *Journal of American History* 107, no. 3 (2022): 456‑78.
Online journal with DOI: Add the DOI after the page range.
Lee, Daniel H. “Digital Archives and Public History.” *Journal of American History* 107, no. 3 (2022): 456‑78. https://doi.org/10.1093/jahist/jab123.
4. Websites
Format:
Last Name, First Name (if known). “Title of Web Page.” *Title of Website*. Publication or last modified date. URL.
Example (no author):
“Climate Change and Coastal Cities.” *National Geographic*. Accessed March 12, 2024. https://www.nationalgeographic.com/environment/coastal-cities.
Example (author known):
Miller, Susan. “How to Cite Sources in Chicago Style.” *CitationHelp.org*. Updated January 5, 2023. https://www.citationhelp.org/chicago.
5. Newspaper Articles
Print version:
Last Name, First Name. “Title of Article.” *Name of Newspaper*, Month Day, Year, page number.
Online version:
Last Name, First Name. “Title of Article.” *Name of Newspaper*, Month Day, Year. URL.
Example:
Johnson, Mark. “City Council Approves New Transit Plan.” *The Chicago Tribune*, July 14, 2023, A4.
6. Government Documents
Format:
Name of Government Agency. *Title of Document*. Place of Publication: Publisher, Year.
Example:
U.S. Environmental Protection Agency. *Air Quality Standards: Final Rule*. Washington, DC: EPA, 2021.
7. Dissertations and Theses
Format:
Last Name, First Name. “Title of Dissertation.” PhD diss., Name of Institution, Year.
Example:
Nguyen, Anh. “Urban Renewal in Post‑War Vietnam.” PhD diss., University of California, Berkeley, 2020.
Tips for Consistency and Accuracy
- Keep a master list of all sources as you research; this prevents last‑minute scrambling.
- Use citation management software (Zotero, EndNote, Mendeley) set to Chicago NB or Author‑Date; verify each entry manually because software can misplace commas or italics.
- Double‑check the place of publication—some books list multiple cities; use the first one listed on the title page.
- When in doubt, consult The Chicago Manual of Style (17th ed.) or its online companion for the most up‑to‑date guidelines.
- Avoid “et al.” in the bibliography unless the work has more than ten authors; then list the first seven followed by “et al.”
Frequently Asked Questions (FAQ)
Q1: Do I need to include the accessed date for online sources?
A: Only if the content is likely to change (e.g., wikis, databases without a publication date). Otherwise, a simple URL is sufficient.
Q2: How should I cite a source with no author?
A: Begin the entry with the title, moving the article “the,” “a,” or “an” to the end of the title for alphabetization (e.g., Guide to Archival Research, The) Not complicated — just consistent..
Q3: What if a source has no publication date?
A: Use “n.d.” (no date) in place of the year. Example: Smith, John. Untitled Manuscript. n.d.
Q4: Can I combine NB and Author‑Date in the same paper?
A: No. Choose one system and apply it consistently throughout the document.
Q5: How do I cite a YouTube video?
A: Treat it as a website: include the creator’s name (or username), title in quotation marks, YouTube as the site, upload date, and URL.
Doe, Jane. “Interview with Historian Dr. Alan Brown.” *YouTube*, June 10, 2022. https://youtu.be/abc123.
Common Pitfalls to Avoid
| Pitfall | Why It Happens | How to Fix It |
|---|---|---|
| Forgetting the hanging indent | Relying on default word‑processor settings | Apply a style template or manually set a 0.5‑inch hanging indent for each entry. |
| Mixing italics and quotation marks | Confusing the rules for container vs. Day to day, component titles | Remember: books/journals = italics, articles/chapters = quotes. |
| Using “retrieved from” before URLs | This phrase is common in APA but not in Chicago | Omit “retrieved from”; just place the URL after the citation. |
| Inconsistent author name order | Switching between “First Last” and “Last, First” | Keep Last, First for bibliography entries; footnotes may use First Last after the first full citation. |
| Missing page numbers for journal articles | Overlooking the final element | Always add the inclusive page range after the volume/issue. |
Sample Bibliography (NB System)
Below is a fully formatted bibliography that demonstrates the rules discussed.
Bibliography
Brown, Lisa, Michael Green, and Sarah White. *Cultural Landscapes*. Chicago: University of Chicago Press, 2018.
Doe, Jane. “Interview with Historian Dr. Alan Brown.” *YouTube*, June 10, 2022. https://youtu.be/abc123.
Garcia, Maria. Even so, “Narratives of Migration in 19th‑Century Europe. ” In *Historical Essays*, edited by Robert L. Turner, 112‑35. London: Palgrave, 2019.
Johnson, Mark. “City Council Approves New Transit Plan.” *The Chicago Tribune*, July 14, 2023, A4.
Kelley, Thomas, ed. *Perspectives on Modernism*. Boston: Beacon Press, 2015.
Lee, Daniel H. “Digital Archives and Public History.” *Journal of American History* 107, no. 3 (2022): 456‑78. And https://doi. org/10.1093/jahist/jab123.
Miller, Susan. That said, “How to Cite Sources in Chicago Style. Which means ” *CitationHelp. org*. Updated January 5, 2023. https://www.citationhelp.org/chicago.
Nguyen, Anh. “Urban Renewal in Post‑War Vietnam.Day to day, ” PhD diss. , University of California, Berkeley, 2020.
Smith, John. *The Rise of Urban Planning*. New York: Routledge, 2020.
U.That's why s. That's why environmental Protection Agency. *Air Quality Standards: Final Rule*. Washington, DC: EPA, 2021.
“Climate Change and Coastal Cities.” *National Geographic*. Accessed March 12, 2024. https://www.nationalgeographic.com/environment/coastal-cities.
## Conclusion
Mastering the Chicago bibliography is less about memorizing endless punctuation rules and more about internalizing a **consistent workflow**: decide on the NB or Author‑Date system, gather complete source information, apply the standard formatting template, and double‑check each entry for hanging indents, italics, and punctuation. By following the step‑by‑step guidelines and examples in this article, you’ll produce a clean, professional bibliography that satisfies instructors, editors, and reviewers alike.
Remember, a well‑crafted bibliography does more than list sources—it demonstrates scholarly rigor, respects intellectual property, and guides readers to the foundations of your research. Keep a reliable citation guide handy, stay consistent, and let your bibliography shine as a solid final touch to any academic work.