Dalrymple, D. J. (1988). Sales management: Concepts and cases (3rd ed.). New York: Wiley.
Trích dẫn kiểu ChicagoDalrymple, Douglas J. Sales Management: Concepts and Cases. 3rd ed. New York: Wiley, 1988.
MLA CitationDalrymple, Douglas J. Sales Management: Concepts and Cases. 3rd ed. New York: Wiley, 1988.
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