Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.