APA استشهاد

Kotler, P. (1992). Principles of marketing. Prentice Hall.

استشهاد بنمط شيكاغو

Kotler, Philip. Principles of Marketing. New Delhi: Prentice Hall, 1992.

MLA استشهاد

Kotler, Philip. Principles of Marketing. Prentice Hall, 1992.