Παραπομπή APA

Manning, G. L. (1998). Selling today: Building quality partnerships (7th edition.). Upper Saddle River, N.J.: Prentice Hall.

Παραπομπή Chicago Style

Manning, Gerald L. Selling Today: Building Quality Partnerships. 7th edition. Upper Saddle River, N.J.: Prentice Hall, 1998.

Παραπομπή MLA

Manning, Gerald L. Selling Today: Building Quality Partnerships. 7th edition. Upper Saddle River, N.J.: Prentice Hall, 1998.

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