APA-viite (7. p.)

Nickels, W. G., & McHugh, J. M. (1987). Understanding business (4th ed.). IRWIN.

Chicago-viite (17. p.)

Nickels, William G., ja James M. McHugh. Understanding Business. 4th ed. Chicago: IRWIN, 1987.

MLA-viite (9. p.)

Nickels, William G., ja James M. McHugh. Understanding Business. 4th ed. IRWIN, 1987.