TY  - GEN
AU  - GRAY, B. F.
TI  - Measurement, Instrumentation, and Data Transmission : A Text for the OND in Technology (Engineering)
SN  - 0 582 41066 5
U1  - 620. 004 GRA 
PY  - 1979///
CY  - London
PB  - Longman
ER  -