TY  - BOOK
AU  - O'Brien, James A.
TI  - Introduction to Information Systems An End User Enterprise Perspective 
SN  - 0256162212
U1  - 658.403811 
PY  - 1995///
CY  - Chicago : 
PB  - Irwin, 
KW  - Business Enterprises Communication Systems
KW  - Information Technology
KW  - Management Information Systems
N1  - NY
UR  - https://eaklibrary.neduet.edu.pk:8443/catalog/bk/books/toc/0-256-16221-2.pdf
ER  -