TY  - BOOK
AU  - Blum, J.
AU  - Blum, Esther L.
TI  - KEYPUNCH, KEYTAPE AND KEYDISC
U1  - 001.6424 
PY  - 1975///
CY  - New York
PB  - Gordon & Breach
KW  - Electronic Data Processing
KW  - Data Tape
ER  -