TY  - BOOK
TI  - Data processing equipment encyclopaedia
U1  - 651.2603 
PY  - 1961///
CY  - Detroit
PB  - Gille Associates
KW  - Data processing-Encyclopaedia
KW  - Electronic device
N1  - V1 - Electromechanical devices. V2 - Electronic devices
ER  -