Παραπομπή APA

Anderson, B. R. (1981). Professional selling/2e (2nd ed.). Prentice Hall.

Παραπομπή Chicago Style

Anderson, B. Robert. Professional Selling/2e. 2nd ed. New Jersey: Prentice Hall, 1981.

Παραπομπή MLA

Anderson, B. Robert. Professional Selling/2e. 2nd ed. Prentice Hall, 1981.