APA (7th ed.) Citation

Berkowitz, E. N., Kerin, R. A., & Rudelius, W. (1989). Marketing (2nd ed.). Irwin.

Chicago Style (17th ed.) Citation

Berkowitz, Eric N., Roger A. Kerin, and William Rudelius. Marketing. 2nd ed. Boston, MA: Irwin, 1989.

MLA (9th ed.) Citation

Berkowitz, Eric N., et al. Marketing. 2nd ed. Irwin, 1989.