Citazione Stile APA (7a Edizione)

Nickels, W. G., McHugh, J. M., & McHugh, S. M. (2002). Understanding business (6th ed.). McGraw-Hill.

Citazione stile Chigago Style (17a edizione)

Nickels, William G., James M. McHugh, e Susan M. McHugh. Understanding Business. 6th ed. Boston, Mass.: McGraw-Hill, 2002.

Citatione MLA (9a ed.)

Nickels, William G., et al. Understanding Business. 6th ed. McGraw-Hill, 2002.