O'Brien, J. A. (2004). Management information systems: Managing information technology in the business enterprise (6th ed.). Tata McGraw-Hill/Irwin.
Citace podle Chicago (17th ed.)O'Brien, James A. Management Information Systems: Managing Information Technology in the Business Enterprise. 6th ed. Boston ; New Delhi: Tata McGraw-Hill/Irwin, 2004.
Citace podle MLA (8th ed.)O'Brien, James A. Management Information Systems: Managing Information Technology in the Business Enterprise. 6th ed. Tata McGraw-Hill/Irwin, 2004.
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