APA (7th ed.) Citation
Gretz, K. F. (1996). Professional selling: A consultative approach. Irwin.
Chicago Style (17th ed.) Citation
Gretz, Karl F. Professional Selling: A Consultative Approach. Chicago: Irwin, 1996.
MLA (9th ed.) Citation
Gretz, Karl F. Professional Selling: A Consultative Approach. Irwin, 1996.
Warning: These citations may not always be 100% accurate.