Cohen, W. A. (1984). Direct response marketing: An enterprencurial approach. john wiley& sons.
シカゴスタイル引用形Cohen, William A. Direct Response Marketing: An Enterprencurial Approach. New York: john wiley& sons, 1984.
MLA引用形式Cohen, William A. Direct Response Marketing: An Enterprencurial Approach. john wiley& sons, 1984.
警告: この引用は必ずしも正確ではありません.