Cita APA (7th ed.)

Posner, R. A. (1977). Economic analysis of law (2a. ed.). Little, Brown.

Cita Chicago (17th ed.)

Posner, Richard A. Economic Analysis of Law. 2a. ed. Boston: Little, Brown, 1977.

Cita MLA (9th ed.)

Posner, Richard A. Economic Analysis of Law. 2a. ed. Little, Brown, 1977.