Παραπομπή APA

Philip, K. (1982). Principles of marketing. Prentice hall of India.

Παραπομπή Chicago Style

Philip, Kotler. Principles of Marketing. New Delhi: Prentice hall of India, 1982.

Παραπομπή MLA

Philip, Kotler. Principles of Marketing. Prentice hall of India, 1982.