TY  - BOOK
AU  - O'Brien,James A.
TI  - Introduction to information systems
SN  - 0256118941
U1  - 658.05 
PY  - 1994///
CY  - Burr Ridge, Illinois
PB  - Irwin, 
KW  - Business
KW  - Data processing
KW  - Management
ER  -