Kotler, P., & Armstrong, G. (2012). Principles of marketing ; 13th.ed. (14th.ed.). Upper Saddle River: Pearson.
Chicago Style CitationKotler, Philip, and Gary Armstrong. Principles of Marketing ; 13th.ed. 14th.ed. Upper Saddle River: Pearson, 2012.
MLA CitationKotler, Philip, and Gary Armstrong. Principles of Marketing ; 13th.ed. 14th.ed. Upper Saddle River: Pearson, 2012.
Warning: These citations may not always be 100% accurate.