APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (8th ed.) Citation

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