Παραπομπή APA

Gary, A., & Philip, K. (2008). Principles of marketing. Pearson Education.

Παραπομπή Chicago Style

Gary, Armstrong, και Kotler Philip. Principles of Marketing. New Delhi: Pearson Education, 2008.

Παραπομπή MLA

Gary, Armstrong, και Kotler Philip. Principles of Marketing. Pearson Education, 2008.