TY  - BOOK
AU  - Hanson, Peggy
TI  - Keypunching
SN  - 0135149010
AV  - HF 5548 H357 1984 CIRC 
PY  - 1984///
CY  - Englewood Cliffs
PB  - Prentice-Hall, Inc.
KW  - Punched card systems
KW  - Keypunches
N1  - Include index
ER  -