Citazione Stile APA (7a Edizione)

Nickels, W. G. (2005). Understanding business.: 7th ed. McGraw-Hill / Irwin.

Citazione stile Chigago Style (17a edizione)

Nickels, William G. Understanding Business.: 7th Ed. Boston: McGraw-Hill / Irwin, 2005.

Citatione MLA (9a ed.)

Nickels, William G. Understanding Business.: 7th Ed. McGraw-Hill / Irwin, 2005.