APA aipamena

Kotler, P. (1989). Principles of marketing (3rd.). Prentice Hall.

Chicago Style aipamena

Kotler, Philip. Principles of Marketing. 3rd. New Delhi: Prentice Hall, 1989.

MLA aipamena

Kotler, Philip. Principles of Marketing. 3rd. Prentice Hall, 1989.