TY  - BOOK
AU  - Verzello, Robert J and Reutter, John
TI  - Data processing: : systems and concepts
SN  - 007067325X
U1  - 005.7 
PY  - 1982///
CY  - London
PB  - ; Mcgraw-Hill
KW  - Computer Data
KW  - Data Processing
ER  -