APA Style

Kotler, Philip, Armstrong, Gary. (2009). Marketing; An Introduction (9). New York: Pearson Prentice Hall.

Chicago Style

Kotler, Philip, Armstrong, Gary. Marketing; An Introduction. 9 New York: Pearson Prentice Hall, 2009. Text.

MLA Style

Kotler, Philip, Armstrong, Gary. Marketing; An Introduction. 9 New York: Pearson Prentice Hall, 2009. Text.

Turabian Style

Kotler, Philip, Armstrong, Gary. Marketing; An Introduction. 9 New York: Pearson Prentice Hall, 2009. Print.