TY  - BOOK
AU  - Babbage,Charles
TI  - Charles Babbage and his calculating engines: selected writings
AV  - QA75 .B28
PY  - 1961///]
CY  - New York
PB  - Dover Publications
KW  - Calculators
KW  - Scientists
KW  - Correspondence
N1  - Includes bibliography
ER  -