Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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