APA (7. basım) Alıntı
Clay, J. (2003). Selling solutions: How to test, monitor and constantly improve your selling skills. Thorogood.
Chicago Style (17. basım) Atıf
Clay, Julian. Selling Solutions: How to Test, Monitor and Constantly Improve Your Selling Skills. London: Thorogood, 2003.
MLA (9th ed.) Atıf
Clay, Julian. Selling Solutions: How to Test, Monitor and Constantly Improve Your Selling Skills. Thorogood, 2003.
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