APA (7th ed.) Citation

Doubman, J. R. (1937). Fundamentals of sales management. F. S. Crofts & co..

Chicago Style (17th ed.) Citation

Doubman, John Russell. Fundamentals of Sales Management. New York: F. S. Crofts & co., 1937.

MLA (9th ed.) Citation

Doubman, John Russell. Fundamentals of Sales Management. F. S. Crofts & co., 1937.