APA (7th ed.) Citation

Osborne, D. R. (1945). Salesmen for tomorrow: How to select and train them (1. ed.). Harper.

Chicago Style (17th ed.) Citation

Osborne, David R. Salesmen for Tomorrow: How to Select and Train Them. 1. ed. New York: Harper, 1945.

MLA (9th ed.) Citation

Osborne, David R. Salesmen for Tomorrow: How to Select and Train Them. 1. ed. Harper, 1945.