Citazione Stile APA (7a Edizione)

O'Brien, J. A. (2001). Introduction to information systems: Essentials for the interworked 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 Interworked E-business Enterprise. 10th ed. Boston: Irwin/Mcgraw-Hill, 2001.

Citatione MLA (9a ed.)

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