Johnston, M. W. Relationship selling: Mark W. Johnston, Greg W. Marshall. Boston: McGraw-Hill/Irwin.
Trích dẫn kiểu ChicagoJohnston, Mark W. Relationship Selling: Mark W. Johnston, Greg W. Marshall. Boston: McGraw-Hill/Irwin.
MLA CitationJohnston, Mark W. Relationship Selling: Mark W. Johnston, Greg W. Marshall. Boston: McGraw-Hill/Irwin.
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