APA استشهاد

Russell, F. A. (1974). Textbook of Salesmanship (9th ed.). McGraw-Hill.

استشهاد بنمط شيكاغو

Russell, Fredric Arthur. Textbook of Salesmanship. 9th ed. New York: McGraw-Hill, 1974.

MLA استشهاد

Russell, Fredric Arthur. Textbook of Salesmanship. 9th ed. McGraw-Hill, 1974.