APA Style

Kotler, Philip, Armstrong, Gary. (2004). Principles of marketing . New Jersey: Prentice Hall.

Chicago Style

Kotler, Philip, Armstrong, Gary. Principles of marketing. New Jersey: Prentice Hall, 2004. Text.

MLA Style

Kotler, Philip, Armstrong, Gary. Principles of marketing. New Jersey: Prentice Hall, 2004. Text.

Turabian Style

Kotler, Philip, Armstrong, Gary. Principles of marketing. New Jersey: Prentice Hall, 2004. Print.