APA (7th ed.) Citation

Posner, R. A. (1992). Economic analysis of law (4th ed.). Little, Brown.

Chicago Style (17th ed.) Citation

Posner, Richard A. Economic Analysis of Law. 4th ed. Boston [Mass.] [etc.]: Little, Brown, 1992.

MLA (9th ed.) Citation

Posner, Richard A. Economic Analysis of Law. 4th ed. Little, Brown, 1992.