APA (7th ed.) Citation

Armstrong, G., & Kotler, P. (2009). Marketing: An introduction (9/e.). Pearson Prentice Hall.

Chicago Style (17th ed.) Citation

Armstrong, Gary, and Philip Kotler. Marketing: An Introduction. 9/e. Upper Saddle River, NJ: Pearson Prentice Hall, 2009.

MLA (9th ed.) Citation

Armstrong, Gary, and Philip Kotler. Marketing: An Introduction. 9/e. Pearson Prentice Hall, 2009.