Walker, G. (2004). Modern competitive strategy. Boston, MA: McGraw-Hill.
シカゴスタイル引用形Walker, Gordon. Modern Competitive Strategy. Boston, MA: McGraw-Hill, 2004.
MLA引用形式Walker, Gordon. Modern Competitive Strategy. Boston, MA: McGraw-Hill, 2004.
警告: この引用は必ずしも正確ではありません.