APA-referens (7:e uppl.)

Nickels, W. G. (1987). Understanding business (4th ed.). Times Mirror.

Chicago-referens (17:e uppl.)

Nickels, William G. Understanding Business. 4th ed. Toronto: Times Mirror, 1987.

MLA-referens (9:e uppl.)

Nickels, William G. Understanding Business. 4th ed. Times Mirror, 1987.