00568pamaa2200169 4500 0000019962 20100106090000.0 0072906111(sc)/0071158111(hc) 658.4038 OBR 1999 HD30.2 OBR 1999 O'Brien Management information systems : managing information technology in the internetworked enterprise James A. O'Brien. 4th ed. Boston: Irwin McGraw Hill, 1999. xxv, 700[102]p.: col.ill.; 26cm. Management information systems Computer networks