TY  - BOOK
AU  - O'Brien,James A.
TI  - Mariagement  information  systems : managerial  and  user  perspective
SN  - 0256108307
U1  - 658.4038 
PY  - 1993///
CY  - Burr  Rider, IL.
PB  - Irwin
KW  - Management information systems
N1  - Includes bibliographies and index
ER  -