APA (7th ed.) Zitazioa

Leterman, E. G. (1974). Sales and sales management (1a. ed.). Alexander Hamilton Institute.

Chicago Style (17th ed.) Zitazioa

Leterman, Elmer G. Sales and Sales Management. 1a. ed. Nueva York: Alexander Hamilton Institute, 1974.

MLA (9th ed.) Zitazioa

Leterman, Elmer G. Sales and Sales Management. 1a. ed. Alexander Hamilton Institute, 1974.