1.

図書
図書
1. Competition, cooperation, efficiency, and social organization : introduction to a political economy
Antonio Jorge
出版情報: Rutherford, [N.J.] : Fairleigh Dickinson University Press, c1978
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2.

図書
図書
2. The promotion of price competition where sellers are few
Frank Kottke
出版情報: Lexington, Mass. : Lexington Books, c1978
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