How To Cite Sources: Bluebook- Legal Citation

This Guide explains the organization and layout of the Bluebook, its use in theory and in practice, and how to cite the most common legal materials, including cases, statutes and treatises. The Guide also reviews how to cite electronic materials.

This Guide does not include explanations on how to cite administrative materials, legislative history resources, international resources, or foreign resources.

The Indigo Book is a free, Creative Commons-dedicated implementation of The Bluebook’s Uniform System of Citation. The Indigo Book covers legal citation for U.S. legal materials, as well as books, periodicals, and Internet and other electronic resources. In addition, The Indigo Book offers citation guidance that is deeper than The Bluebook’s Bluepages—for example, The Indigo Book has citation guidance for bills, and for legislative history, that the Bluepages lack.