Bearden, W. O. (2007). Marketing: Principles and perspectives. Boston: McGraw-Hill/Irwin.
Trích dẫn kiểu ChicagoBearden, William O. Marketing: Principles and Perspectives. Boston: McGraw-Hill/Irwin, 2007.
Deismireacht MLABearden, William O. Marketing: Principles and Perspectives. Boston: McGraw-Hill/Irwin, 2007.
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