APA Style

Armstrong, Gary, Kotler Philip. (2006). Principles of marketing . Boston, MA: Pearson Custom Publishing,.

Chicago Style

Armstrong, Gary, Kotler Philip. Principles of marketing. Boston, MA: Pearson Custom Publishing,, 2006. Text.

MLA Style

Armstrong, Gary, Kotler Philip. Principles of marketing. Boston, MA: Pearson Custom Publishing,, 2006. Text.

Turabian Style

Armstrong, Gary, Kotler Philip. Principles of marketing. Boston, MA: Pearson Custom Publishing,, 2006. Print.