TY  - BOOK
AU  - Molloy, E
TI  - Instruments, Part. 2
U1  - 629.135 INS 
PY  - 1940///
CY  - London
PB  - George Newnes
KW  - Measuring instruments
KW  - Electronic instruments
KW  - Instrumentation—Electronics
N1  - Includes index
ER  -