APA استشهاد

Tosdal, H. R. (1957). Introduction to sales management/4e (4th ed.). Mcgraw Hill.

استشهاد بنمط شيكاغو

Tosdal, Harry R. Introduction to Sales Management/4e. 4th ed. London: Mcgraw Hill, 1957.

MLA استشهاد

Tosdal, Harry R. Introduction to Sales Management/4e. 4th ed. Mcgraw Hill, 1957.