TY  - BOOK
AU  - O'Brien,James A.
TI  - Management information systems: a managerial end user perspective 
SN  - 0-256-10346-1
U1  - Prof. 658.4038 O132 1993 
PY  - 1993///
CY  - Homewood, IL
PB  - Irwin
KW  - Management information systems
N1  - Includes bibliographical references and indexes
ER  -