AAker, D. A., & Johnston, M. W. (2003). Churchill ford walkers sales force management. McGraw-Hill.
Chicago Style (17. basım) AtıfAAker, David A., ve Mark W. Johnston. Churchill Ford Walkers Sales Force Management. McGraw-Hill, 2003.
MLA (8th ed.) AtıfAAker, David A., ve Mark W. Johnston. Churchill Ford Walkers Sales Force Management. McGraw-Hill, 2003.
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