Armstrong, G., & Kotler, P. Marketing: An introduction (9 th ed.). Upper Saddle River, NJ: Pearson /Prentice Hall.
Chicago Style CitationArmstrong, Gary, and Philip Kotler. Marketing: An Introduction. 9 th ed. Upper Saddle River, NJ: Pearson /Prentice Hall.
MLA CitationArmstrong, Gary, and Philip Kotler. Marketing: An Introduction. 9 th ed. Upper Saddle River, NJ: Pearson /Prentice Hall.
Warning: These citations may not always be 100% accurate.