00487cam a2200181 a 4500 20260520055912.0 9781292341132 (pbk.) 658.8 KOT Kotler, Philip. Principles of marketing / Philip Kotler & Gray Armstrong. 8th ed. London : Pearson, c2021. 730p. : ill. (chiefly col.) ; 30cm. Including Index. Marketing. Kotler, Philip. BK 55572 55572