TY  - BOOK
AU  - Haslam,J.A.
AU  - Summers,G.R.
AU  - Williams,D.
TI  - Engineering instrumentation and control
SN  - 0713134313 
PY  - 1981///
CY  - London 
PB  - Edward Arnold 
KW  - Automatic control.
KW  - Mensuration.
ER  -