Peppers. Don ; Rogers, M. (2005). Return on Customer. Happer Business.
Chicagoスタイル(17版)引用形式Peppers. Don ; Rogers, Martha. Return on Customer. New York: Happer Business, 2005.
MLA(9版)引用形式Peppers. Don ; Rogers, Martha. Return on Customer. Happer Business, 2005.
警告: この引用は必ずしも正確ではありません.