The Bluebook: a Uniform System of Citation.
(RefDesk KF245 .B58 2020, Ref KF 245 .B58 2010)
Explains basic principles and forms for legal citations. Gives standard citations, presents specific rules and has a series of tables to be used with the rules for various types of materials. Many citation guides, such as MLA and APA, defer to Bluebook for citing legal and government sources.
ALWD Citation Manual: a Professional System of Citation. 2nd ed. NY: Aspen Publishers, 2003.
(Law KF245 .A45 2003)
Covers a single citation system with a set of rules for all forms of legal writing. Covers only U.S. law.