Cita APA (7th ed.)

Powell, A. A. (1974). Empirical analytics of demand systems. Lexington Books.

Cita Chicago (17th ed.)

Powell, Alan A. Empirical Analytics of Demand Systems. Lexington, Mass.: Lexington Books, 1974.

Cita MLA (8th ed.)

Powell, Alan A. Empirical Analytics of Demand Systems. Lexington Books, 1974.