Cita APA (7a ed.)

Friedman, M. (1981). Price theory (3th ed.). Aldine Publishing Company.

Cita Chicago Style (17a ed.)

Friedman, Milton. Price Theory. 3th ed. Chicago: Aldine Publishing Company, 1981.

Cita MLA (9a ed.)

Friedman, Milton. Price Theory. 3th ed. Aldine Publishing Company, 1981.