TY  - BOOK
AU  - Gregory,B.A.
TI  - An introduction to electrical instrumrntation
SN  - 9780333232835
U1  - 537.534 
PY  - 1977///
PB  - English Language Book Society
KW  - Electric measurements
KW  - Electric meters
N1  - Originally published: London: Macmillan, 1973
ER  -