Citazione Stile APA (7a Edizione)

O'Brien, J. A. (2001). Introduction to information systems: Essentials for the internetworked e-business enterprise (10th ed.). Irwin/McGraw-Hill.

Citazione stile Chigago Style (17a edizione)

O'Brien, James A. Introduction to Information Systems: Essentials for the Internetworked E-business Enterprise. 10th ed. Boston, MA: Irwin/McGraw-Hill, 2001.

Citatione MLA (9a ed.)

O'Brien, James A. Introduction to Information Systems: Essentials for the Internetworked E-business Enterprise. 10th ed. Irwin/McGraw-Hill, 2001.