Cita APA

Russell, F. A., & Beach, F. H. (1969). Textbook of salesmanship (8th ed.). Mc Graw hill book company.

Chicago Edition Citation

Russell, Frederic A., i Frank H. Beach. Textbook of Salesmanship. 8th ed. New York: Mc Graw hill book company, 1969.

Cita MLA

Russell, Frederic A., i Frank H. Beach. Textbook of Salesmanship. 8th ed. Mc Graw hill book company, 1969.