Farber, B. J. (2005). Barry Farber's guide to handling sales objections. Franklin Lakes, NJ: Career Press.
Čikaški stil citiranjaFarber, Barry J. Barry Farber's Guide to Handling Sales Objections. Franklin Lakes, NJ: Career Press, 2005.
MLA način citiranjaFarber, Barry J. Barry Farber's Guide to Handling Sales Objections. Franklin Lakes, NJ: Career Press, 2005.
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