Cita APA (7a ed.)

Hanan, M.. (2011). Consultative selling: The Hanan formula for high-margin sales at high levels (8th ed.). American Management Association.

Cita Chicago Style (17a ed.)

Hanan, Mack. Consultative Selling: The Hanan Formula for High-margin Sales at High Levels. 8th ed. New York: American Management Association, 2011.

Cita MLA (9a ed.)

Hanan, Mack. Consultative Selling: The Hanan Formula for High-margin Sales at High Levels. 8th ed. American Management Association, 2011.