TY  - BOOK
AU  - Stair,Ralph M
TI  - Principles of data processing: concepts, applications, and cases 
SN  - 0256029911
AV  - QA76 .S72 1984
U1  - 001.64 19
PY  - 1984///
CY  - Homewood, Illinois
PB  - Richard D. Irwin
KW  - Electronic data processing
N1  - Includes bibliographical references and index
ER  -