Παραπομπή APA

Kotler, P., & Armstrong, G. (1997). Principles of marketing (7th ed.). Prentice Hall of India.

Παραπομπή Chicago Style

Kotler, Philip, και Gary Armstrong. Principles of Marketing. 7th ed. New Delhi: Prentice Hall of India, 1997.

Παραπομπή MLA

Kotler, Philip, και Gary Armstrong. Principles of Marketing. 7th ed. Prentice Hall of India, 1997.