Haag, S., & Cummings, M. (2006). Information Systems Essentials. McGraw Hill.
Chicago Style aipamenaHaag, Stephen, and Maeve Cummings. Information Systems Essentials. Boston: McGraw Hill, 2006.
MLA aipamenaHaag, Stephen, and Maeve Cummings. Information Systems Essentials. McGraw Hill, 2006.
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