Bluebook Case Citation

A Bluebook case citation is the standardized reference format used across United States legal scholarship, judicial opinions, and court filings to identify judicial decisions. Codified in Rule 10 of The Bluebook: A Uniform System of Citation (and Rule B10 in the practitioner Bluepages), this system provides an unambiguous path to locate the exact volume, reporter, and page where an opinion is published. In academic legal manuscripts and law reviews, precise case citation ensures that doctrinal claims and precedential weights are verifiable.

For scholars establishing foundations in legal studies, understanding how to cite a case in Bluebook style is fundamental. While interdisciplinary social scientists frequently reference decisions using APA style (as outlined in our guide on how to cite a legal case in APA), legal academic writing relies on the Bluebook’s distinctive footnote mechanics, reporter hierarchies, and parenthetical conventions.

The format

A standard full citation to a published American judicial opinion consists of five core elements arranged in sequence:

[Case Name], [Volume Number] [Reporter Abbreviation] [First Page], [Pinpoint Page] ([Court Abbreviation] [Year of Decision]).

• Case Name (Rule 10.2): Names of the parties. In academic law review footnotes, the case name is italicized. Omit all but the first plaintiff and first defendant, drop individual given names or initials (retaining only surnames), and abbreviate words according to Table T6 (e.g., “Ass’n”, “Co.”).
• Volume Number (Rule 10.3): Numerical volume of the case reporter series.
• Reporter Abbreviation (Rule 10.3 & Table T1): Standard abbreviation for the reporter set (e.g., “U.S.” for United States Reports, “F.4th” for the Federal Reporter, or “N.E.3d”).
• First Page (Rule 10.3): Page number on which the court opinion begins.
• Pinpoint Page (Rule 10.1.2): Specific page referenced, preceded by a comma after the initial page (e.g., “662, 678”).
• Court and Year Parenthetical (Rule 10.4 & Rule 10.5): Identifies the deciding court (Table T7) and year. When citing the highest court of a jurisdiction whose identity is clear from the reporter (such as the U.S. Supreme Court in United States Reports), omit the court designation and give only the year.

Examples

Standard full Bluebook citations across different court levels include:

1. United States Supreme Court
Brown v. Board of Education, 347 U.S. 483, 493 (1954).
Explanation: Published in volume 347 of United States Reports at page 483, pinpointing page 493. Because “U.S.” identifies the Supreme Court, no court abbreviation appears in the parenthetical.

2. Federal Circuit Court of Appeals
United States v. MacDonald, 531 F.2d 196, 199–200 (4th Cir. 1976).
Explanation: Published in volume 531 of the Federal Reporter, Second Series at page 196. The parenthetical specifies the circuit (“4th Cir.”) and year (“1976”).

3. Federal District Court
Jones v. Smith, 450 F. Supp. 3d 120, 125 (S.D.N.Y. 2020).
Explanation: Published in the Federal Supplement, Third Series. The parenthetical identifies the district (“S.D.N.Y.”) and decision year.

4. State Appellate Court
State v. Enlow, 536 S.W.2d 533, 535 (Mo. Ct. App. 1976).
Explanation: Published in the South Western Reporter, Second Series. The parenthetical identifies the state and appellate court (“Mo. Ct. App.”) and year.

5. Corporate Litigation (Demonstration Example)
Apex Mfg. Co. v. Summit Enters., Inc., 895 F.3d 310, 314 (7th Cir. 2018).
Explanation: Illustrative example with fictional corporate entities showing Table T6 abbreviations for “Manufacturing” (“Mfg.”), “Company” (“Co.”), and “Enterprises” (“Enters.”).

In-text citation version

In legal academic writing, citations appear in footnotes rather than inline parentheses. Once a case has been fully cited, subsequent references use Bluebook short forms (Rule 10.9 and Rule 4):

• Using Id. (Rule 4.1): Used when citing the exact same authority referenced in the immediately preceding citation with no intervening sources:
  • Same page: Id.
  • Different pinpoint page: Id. at 495.
• Shortened Case Name Form (Rule 10.9(a)(i)): When another authority has intervened, cite a shortened case name followed by volume, reporter, and pinpoint page:
  • MacDonald, 531 F.2d at 199.
  • Brown, 347 U.S. at 494.

  Note: If the first party is a frequent litigant (e.g., the United States), use the second party’s name.

• Reporter-Only Form: When the case name is already stated in the text sentence:
  • In MacDonald, the court clarified this standard. 531 F.2d at 199.

Adhering to these conventions aligns with law review authorship norms, enabling readers to track precedential lineage cleanly.

Common errors

Writers frequently encounter specific pitfalls when formatting case citations:

• Redundant Court Abbreviations: Writing (U.S. 2009) for Supreme Court decisions in U.S. Reports. Rule 10.4 forbids repeating the court name when the reporter identifies it.
• Unabbreviated Party Names: Retaining full corporate terms (e.g., writing “Corporation” instead of “Corp.”) rather than consulting Table T6.
• Multiple Parties or Procedural Tags: Retaining “et al.” or “appellant”. Bluebook requires omitting all parties except the first named plaintiff and defendant.
• Missing Pinpoint Commas: Omitting the comma between first page and pinpoint page (write 347 U.S. 483, 493).
• Improper Spacing: Closing spaces between single-letter abbreviations (“F.3d”, “S.D.N.Y.”) while maintaining spaces between multi-letter abbreviations (“F. Supp. 3d”).
• Misplaced Id.: Using Id. when the preceding citation contained multiple authorities.

Rigorous citation verification prevents inaccuracies and safeguards against the institutional consequences of research misconduct.

Style-guide edition

The rules and patterns detailed in this guide reflect the 21st Edition (2020) of The Bluebook: A Uniform System of Citation, compiled by the editors of the Columbia Law Review, Harvard Law Review, University of Pennsylvania Law Review, and Yale Law Journal.

The 21st Edition expanded electronic source guidance (Rule 18) and Table T6 abbreviations while maintaining the foundational architecture of Rule 10.

FAQ

When should I underline versus italicize a case name in Bluebook?

Case names are almost universally italicized. The Bluebook permits underlining in practitioner memos and court briefs under the Bluepages, but law reviews and scholarly journals require italics in both text and footnotes.

Do I include the court name when citing U.S. Supreme Court cases?

No. When citing the official United States Reports (U.S.), omit the court name from the parenthetical and include only the year (e.g., 556 U.S. 662 (2009)). If citing an unofficial reporter (such as Supreme Court Reporter, S. Ct.), the court name is still omitted because the reporter publishes only Supreme Court opinions.

How do I cite a case not yet assigned a volume or page number?

For recently decided or unreported cases, Rule 10.8.1 prescribes citing to an electronic database (such as Lexis or Westlaw) using the docket number, electronic database identifier (e.g., WL or LEXIS number), full date of decision, and court designation.

What is the difference between Bluebook Rule 10 and the Bluepages?

The Bluepages (prefixed with “B”, such as Rule B10) provide condensed citation guidelines for practitioners drafting court briefs and memoranda. Rule 10 in the main Whitepages provides the comprehensive rules required for academic law reviews and scholarly journals.

Sources

• Columbia Law Review, Harvard Law Review, University of Pennsylvania Law Review, and Yale Law Journal, eds. The Bluebook: A Uniform System of Citation. 21st ed. Cambridge: The Harvard Law Review Association, 2020.
• Georgetown Law Library. “Bluebook Guide: Citing Cases.” guides.ll.georgetown.edu. Accessed November 7, 2026. https://guides.ll.georgetown.edu/bluebook/citing-cases
• Georgetown Law Library. “Bluebook Guide: Federal Courts.” guides.ll.georgetown.edu. Accessed November 7, 2026. https://guides.ll.georgetown.edu/c.php?g=261289&p=2339383
• Georgetown Law Library. “Bluebook Guide: Short Forms for Cases.” guides.ll.georgetown.edu. Accessed November 7, 2026. https://guides.ll.georgetown.edu/c.php?g=261289&p=2339389
• Legal Information Institute (LII), Cornell Law School. “Wex: Bluebook.” law.cornell.edu. Accessed November 7, 2026. https://www.law.cornell.edu/wex/bluebook