OʼBrien, J. A. (1999). Management information systems: Managing information technology in the internetworked enterprise (4th ed.). Irwin/McGraw-Hill ; Galgotia Publications.
Lua i Stíl Chicago (17ú heag.)OʼBrien, James A. Management Information Systems: Managing Information Technology in the Internetworked Enterprise. 4th ed. Boston : New Delhi: Irwin/McGraw-Hill ; Galgotia Publications, 1999.
Lua MLA (8ú heag.)OʼBrien, James A. Management Information Systems: Managing Information Technology in the Internetworked Enterprise. 4th ed. Irwin/McGraw-Hill ; Galgotia Publications, 1999.
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