Kurtz, D. L., & David L. Kurtz. (2007). Contemporary Business 2007. Mason, OH: South-Western Cengage Learning.
Παραπομπή Chicago StyleKurtz, David L., και David L. Kurtz. Contemporary Business 2007. Mason, OH: South-Western Cengage Learning, 2007.
Παραπομπή MLAKurtz, David L., και David L. Kurtz. Contemporary Business 2007. Mason, OH: South-Western Cengage Learning, 2007.
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