Cita APA (7th ed.)

Nickels, W. G., McHugh, J. M., & McHugh, S. M. (1996). Understanding business (4th ed.). Irwin.

Cita Chicago (17th ed.)

Nickels, William G., James M. McHugh, i Susan M. McHugh. Understanding Business. 4th ed. Chicago: Irwin, 1996.

Cita MLA (9th ed.)

Nickels, William G., et al. Understanding Business. 4th ed. Irwin, 1996.