TY - BOOK AU - OBrien,James A. TI - Management information systems: a managerial end user perspective SN - 818601179X AV - HF5548.32 .O27 1998 U1 - 658.4038011 PY - 1998/// CY - New Delhi PB - Galgotia KW - Management KW - Information systems KW - Computer networks ER -