Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (8a ed.)

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