TY  - BOOK
AU  - Gruenberger, Fred Joseph
AU  - McCracken, Daniel D
TI  - Introduction to electronic computers: problem solving with IBM 1620 
AV  - QA 76 G7
PY  - 1963///
CY  - New York
PB  - J. Wiley
KW  - Máquinas calculadoras electrónicas
ER  -