Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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