Παραπομπή APA

Kotler, P., & Armstrong,Gary. (2008). Principles of marketing (12th.). PHI.

Παραπομπή Chicago Style

Kotler, Philip, και Armstrong,Gary. Principles of Marketing. 12th. New Delhi: PHI, 2008.

Παραπομπή MLA

Kotler, Philip, και Armstrong,Gary. Principles of Marketing. 12th. PHI, 2008.