Weitz, B. A. (2004). Selling: Building partnerships. Boston: McGraw-Hill/Irwin.
Čikaški stil citiranjaWeitz, Barton A. Selling: Building Partnerships. Boston: McGraw-Hill/Irwin, 2004.
MLA način citiranjaWeitz, Barton A. Selling: Building Partnerships. Boston: McGraw-Hill/Irwin, 2004.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.