Porter, M. E. (1998). Competitive Strategy (ain.). Simon & Schuster UK Ltd.
Chicagoスタイル(17版)引用形式Porter, Michael E. Competitive Strategy. ain. Great Brit: Simon & Schuster UK Ltd, 1998.
MLA(9版)引用形式Porter, Michael E. Competitive Strategy. ain. Simon & Schuster UK Ltd, 1998.
警告: この引用は必ずしも正確ではありません.