APA استشهاد

Kotler, P. (2006). Principles of marketing (11th ed.). Pearson Education.

استشهاد بنمط شيكاغو

Kotler, Philip. Principles of Marketing. 11th ed. Delhi: Pearson Education, 2006.

MLA استشهاد

Kotler, Philip. Principles of Marketing. 11th ed. Pearson Education, 2006.