Citazione Stile APA (7a Edizione)

Nickels, W. G. (2008). Understanding Business. (8th ed.). McGraw-Hill.

Citazione stile Chigago Style (17a edizione)

Nickels, William G. Understanding Business. 8th ed. New York: McGraw-Hill, 2008.

Citatione MLA (9a ed.)

Nickels, William G. Understanding Business. 8th ed. McGraw-Hill, 2008.