Russell, F., & Beach, F. H. B. (1988). Selling; Principles and Practices (12th ed.). McGraw-Hill.
Chicago Stili AlıntıRussell, Frederic, ve Frank H Buskirk Beach. Selling; Principles and Practices. 12th ed. New York: McGraw-Hill, 1988.
MLA AlıntıRussell, Frederic, ve Frank H Buskirk Beach. Selling; Principles and Practices. 12th ed. McGraw-Hill, 1988.
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