APA (7th ed.) Citation

Luther, W. M. (2001). The marketing plan: How to prepare and implement it (3. ed.). Amacom.

Chicago Style (17th ed.) Citation

Luther, William M. The Marketing Plan: How to Prepare and Implement It. 3. ed. New York: Amacom, 2001.

MLA (9th ed.) Citation

Luther, William M. The Marketing Plan: How to Prepare and Implement It. 3. ed. Amacom, 2001.