Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

Berkowitz, Eric N., Roger A. Kerin, y William Rudelius. Marketing. 2nd ed. Homewood, Ill: Irwin, 1989.

Cita MLA (9a ed.)

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