Citace podle APA (7th ed.)
O'Brien, J. A. (2000). Introduction to information systems: Essentials for the internetworked enterprise (9th ed.). McGraw-Hill/Irwin.
Citace podle Chicago (17th ed.)
O'Brien, James A. Introduction to Information Systems: Essentials for the Internetworked Enterprise. 9th ed. Boston: McGraw-Hill/Irwin, 2000.
Citace podle MLA (9th ed.)
O'Brien, James A. Introduction to Information Systems: Essentials for the Internetworked Enterprise. 9th ed. McGraw-Hill/Irwin, 2000.
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