APA-referens (7:e uppl.)

Mandino, O. (1968). The greatest salesman in the world. Frederick Fell.

Chicago-referens (17:e uppl.)

Mandino, Og. The Greatest Salesman in the World. New York: Frederick Fell, 1968.

MLA-referens (9:e uppl.)

Mandino, Og. The Greatest Salesman in the World. Frederick Fell, 1968.