Citazione Stile APA (7a Edizione)

Nickels, W. G., McHugh, J. M., & McHugh, S. M. (1999). Understanding Business: 5th ed (Fifth Edition.). Irwin/McGraw-Hill.

Citazione stile Chigago Style (17a edizione)

Nickels, William G., James M. McHugh, e Susan M. McHugh. Understanding Business: 5th Ed. Fifth Edition. Boston / New York: Irwin/McGraw-Hill, 1999.

Citatione MLA (9a ed.)

Nickels, William G., et al. Understanding Business: 5th Ed. Fifth Edition. Irwin/McGraw-Hill, 1999.