Dyfyniad APA

Jobber, D. a. L. (2004). Selling and sales management (6 edition.).

Dyfyniad Arddull Chicago

Jobber, David and Lancaster. Selling and Sales Management. 6 edition. Pearson Education Asia, 2004.

Dyfyniad MLA

Jobber, David and Lancaster. Selling and Sales Management. 6 edition. 2004.

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