Kotler, P. (1991). Principles of marketing (5th.). Prentic Hall.
Chicagoスタイル(17版)引用形式Kotler, Philip. Principles of Marketing. 5th. New Delhi: Prentic Hall, 1991.
MLA(9版)引用形式Kotler, Philip. Principles of Marketing. 5th. Prentic Hall, 1991.
警告: この引用は必ずしも正確ではありません.