Cita APA (7a ed.)
Nickels, W. G. (1987). Understanding business (4th ed.). Times Mirror.
Cita Chicago Style (17a ed.)
Nickels, William G. Understanding Business. 4th ed. Toronto: Times Mirror, 1987.
Cita MLA (9a ed.)
Nickels, William G. Understanding Business. 4th ed. Times Mirror, 1987.
Precaución: Estas citas no son 100% exactas.