Citazione Stile APA (7a Edizione)

O'Brien, J. A. (2010). Introduction to information systems (12th ed.). Irwin/McGraw-Hill.

Citazione stile Chigago Style (17a edizione)

O'Brien, James A. Introduction to Information Systems. 12th ed. Boston: Irwin/McGraw-Hill, 2010.

Citatione MLA (9a ed.)

O'Brien, James A. Introduction to Information Systems. 12th ed. Irwin/McGraw-Hill, 2010.