TY  - BOOK
AU  - Gruenberger, Fred J.
AU  - McCracken, Daniel D.
TI  - Introduction to electronic computers; problem solving with the IBM
U1  - 001.6424 
PY  - 1963///
CY  - New York
PB  - Wiley
KW  - Calculadoras electrónicas
KW  - IBM 1620 (Computadora)
ER  -