APA-referens (7:e uppl.)

Sheldon, A. F. (1911). The art of selling, for business colleges, high schools of commerce, Y.M.C.A classes and private students. The Sheldon university press.

Chicago-referens (17:e uppl.)

Sheldon, Arthur Frederick. The Art of Selling, for Business Colleges, High Schools of Commerce, Y.M.C.A Classes and Private Students. Libertyville, Ill: The Sheldon university press, 1911.

MLA-referens (9:e uppl.)

Sheldon, Arthur Frederick. The Art of Selling, for Business Colleges, High Schools of Commerce, Y.M.C.A Classes and Private Students. The Sheldon university press, 1911.