Dyfyniad APA

Pederson, C. A. (1981). Selling: Principles and methods. Richard D. Irwin.

Dyfyniad Arddull Chicago

Pederson, Carlton A. Selling: Principles and Methods. Homewood, Ill.: Richard D. Irwin, 1981.

Dyfyniad MLA

Pederson, Carlton A. Selling: Principles and Methods. Richard D. Irwin, 1981.

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