Cita APA (7a ed.)

Hanan, M. (1978). Systems selling strategies. AMACOM.

Cita Chicago Style (17a ed.)

Hanan, Mack. Systems Selling Strategies. New York: AMACOM, 1978.

Cita MLA (9a ed.)

Hanan, Mack. Systems Selling Strategies. AMACOM, 1978.