APA (7th ed.) Zitazioa

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

Chicago Style (17th ed.) Zitazioa

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

MLA (9th ed.) Zitazioa

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