APA (7th ed.) Citation

Canfield, B. R. (1950). Salesmanship; practices and problems (2nd ed.). McGraw-Hill.

Chicago Style (17th ed.) Citation

Canfield, Bertrand R. Salesmanship; Practices and Problems. 2nd ed. New York: McGraw-Hill, 1950.

MLA (9th ed.) Citation

Canfield, Bertrand R. Salesmanship; Practices and Problems. 2nd ed. McGraw-Hill, 1950.