Citazione Stile APA (7a Edizione)

Norton, P. (2003). Peter Norton's essential concepts (5th ed.). Glencoe / McGraw-Hill.

Citazione stile Chigago Style (17a edizione)

Norton, Peter. Peter Norton's Essential Concepts. 5th ed. Columbus, Ohio: Glencoe / McGraw-Hill, 2003.

Citatione MLA (9a ed.)

Norton, Peter. Peter Norton's Essential Concepts. 5th ed. Glencoe / McGraw-Hill, 2003.