TY  - BOOK
AU  - Varsegi,Alex
TI  - Practical business systems implementation: a DP guide 
SN  - 0442288433
AV  - HF5548.2 V326
PY  - 1988///
CY  - New York
PB  - : Van Nostrand Reinhold
KW  - Business
KW  - Data processing
KW  - System design
ER  -