Cita APA (7a ed.)

Nickels, W. G., McHugh, J. M., & McHugh, S. M. (1993). Understanding business (3rd edition.). Irwin.

Cita Chicago Style (17a ed.)

Nickels, William G., James M. McHugh, y Susan M. McHugh. Understanding Business. 3rd edition. Homewood, IL: Irwin, 1993.

Cita MLA (8a ed.)

Nickels, William G., et al. Understanding Business. 3rd edition. Irwin, 1993.