Walker, O. C. (2009). Marketing Strategy (5th.). Tata McGraw Hill Education Private Limited.
Chicagoスタイル(17版)引用形式Walker, Orville C. Marketing Strategy. 5th. New Delhi: Tata McGraw Hill Education Private Limited, 2009.
MLA(9版)引用形式Walker, Orville C. Marketing Strategy. 5th. Tata McGraw Hill Education Private Limited, 2009.
警告: この引用は必ずしも正確ではありません.