Futrell, C. (1998). Fundamentals of selling: Customers for life. Boston: Irwin/McGraw-Hill.
Trích dẫn kiểu ChicagoFutrell, Charles. Fundamentals of Selling: Customers for Life. Boston: Irwin/McGraw-Hill, 1998.
MLA citiranjeFutrell, Charles. Fundamentals of Selling: Customers for Life. Boston: Irwin/McGraw-Hill, 1998.
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