APA (7th ed.) Citation

Hanan, M. (1999). Consultative selling: The Hanan formula for high-margin sales at high levels (Advanced 6th ed.). American Management Association.

Chicago Style (17th ed.) Citation

Hanan, Mack. Consultative Selling: The Hanan Formula for High-margin Sales at High Levels. Advanced 6th ed. New York: American Management Association, 1999.

MLA (9th ed.) Citation

Hanan, Mack. Consultative Selling: The Hanan Formula for High-margin Sales at High Levels. Advanced 6th ed. American Management Association, 1999.