O'Brien, J. A. (2000). Introduction to information systems: Essentials for the internetworked enterprise (9th ed.). Boston: Irwin/McGraw-Hill.
Stile di citazione ChicagoO'Brien, James A. Introduction to Information Systems: Essentials for the Internetworked Enterprise. 9th ed. Boston: Irwin/McGraw-Hill, 2000.
Citazione MLAO'Brien, James A. Introduction to Information Systems: Essentials for the Internetworked Enterprise. 9th ed. Boston: Irwin/McGraw-Hill, 2000.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.