APA (7. basım) Alıntı

Frederick, J. G. (1929). Selling by telephone. Business Bourse Publishers.

Chicago Style (17. basım) Atıf

Frederick, J. George. Selling by Telephone. New York: Business Bourse Publishers, 1929.

MLA (8th ed.) Atıf

Frederick, J. George. Selling by Telephone. Business Bourse Publishers, 1929.