TY  - BOOK
AU  - O'Brien,James A.
TI  - Management information systems: a managerial end user perspective 
SN  - 0256103461
AV  - HF5548 .32 1993
U1  - 658.4038011 
PY  - 1993///
CY  - Illinois
PB  - Irwin
KW  - Management information systems
KW  - Information science
ER  -