Oster, S. M. (1994). Modern competitive analysis (2nd ed.). University press.
シカゴスタイル引用形Oster, Sharon M. Modern Competitive Analysis. 2nd ed. New York: University press, 1994.
MLA引用形式Oster, Sharon M. Modern Competitive Analysis. 2nd ed. University press, 1994.
警告: この引用は必ずしも正確ではありません.