APA (7th ed.) Zitazioa

Kotler, P., & Amstrong, G. (2013). Principles of marketing (14th ed.). Pearson educational limited.

Chicago Style (17th ed.) Zitazioa

Kotler, Philip, eta Gary Amstrong. Principles of Marketing. 14th ed. England: Pearson educational limited, 2013.

MLA (9th ed.) Zitazioa

Kotler, Philip, eta Gary Amstrong. Principles of Marketing. 14th ed. Pearson educational limited, 2013.