Jobber, D., & Lancaster,Geoff. (1990). Selling and sales management (7th ed.). Pearson.
Chicago Style (17. basım) AtıfJobber, David, ve Lancaster,Geoff. Selling and Sales Management. 7th ed. Delhi: Pearson, 1990.
MLA (9th ed.) AtıfJobber, David, ve Lancaster,Geoff. Selling and Sales Management. 7th ed. Pearson, 1990.
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