APA استشهاد

Kotler, P. (2005). Principles of marketing/6e (6th ed.). Prentice Hall.

استشهاد بنمط شيكاغو

Kotler, Philip. Principles of Marketing/6e. 6th ed. Delhi: Prentice Hall, 2005.

MLA استشهاد

Kotler, Philip. Principles of Marketing/6e. 6th ed. Prentice Hall, 2005.