TY  - BOOK
AU  - Blum,Jaime
AU  - Blum,Esther L.
TI  - Keypunch, keytape and keydisc
SN  - 0677039506 :
U1  - 651.26 
PY  - 1975///
CY  - New York
PB  - Gordon and Breach
KW  - Electronic data processing
KW  - Handbooks, manuals, etc
KW  - Punched card systems
KW  - Data tapes
N1  - Glossary : p. 191-196P; Includes index
ER  -