TY  - BOOK
AU  - Verzello,Robert J.
AU  - Reutter,John III
TI  - Data processing: systems and concepts 
SN  - 007067325X
AV  - QA76 VER
PY  - 1982///
CY  - New York
PB  - McGraw-Hill
KW  - Electronic data processing
N1  - Includes bibliographical references and index
ER  -