Gaya APA

Armstrong, G., Kotler, P. (1994). Principles of marketing / Philip Kotler, Gary Armstrong (Ed.ke-6). New Jersey: Prentice-Hall.

Gaya MLA

Armstrong, Gary., Kotler, Philip. "Principles of marketing / Philip Kotler, Gary Armstrong". Ed.ke-6 New Jersey: Prentice-Hall, 1994. Skripsi.