BOONE, L. . E. .. . K. (2006). Study guide: Contemporary marketing. South-Western.
Lua i Stíl Chicago (17ú heag.)BOONE, Louis E . Kurtz. Study Guide: Contemporary Marketing. South-Western, 2006.
Lua MLA (9ú heag.)BOONE, Louis E . Kurtz. Study Guide: Contemporary Marketing. South-Western, 2006.
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