Gray Armstrong, & Philip kotler. (2006). Armstrong / kotler: Marketing : an introduction (1/1993.). Usa: Pearson.
Chicago Style CitationGray Armstrong, and Philip kotler. Armstrong / Kotler: Marketing : An Introduction. 1/1993. Usa: Pearson, 2006.
MLA CitationGray Armstrong, and Philip kotler. Armstrong / Kotler: Marketing : An Introduction. 1/1993. Usa: Pearson, 2006.
Warning: These citations may not always be 100% accurate.