O'BRIEN JAMES A. (1991). MANAGEMENT INFORMATION SYSTEMS: A MANAGERIAL & USER PERSPECTIVE. GALGOTIA PUBLICATIONS.
Chicago-čujuhus (17. p.)O'BRIEN JAMES A. MANAGEMENT INFORMATION SYSTEMS: A MANAGERIAL & USER PERSPECTIVE. NEW DELHI: GALGOTIA PUBLICATIONS, 1991.
MLA-čujuhus (9. p.)O'BRIEN JAMES A. MANAGEMENT INFORMATION SYSTEMS: A MANAGERIAL & USER PERSPECTIVE. GALGOTIA PUBLICATIONS, 1991.
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