TY  - BOOK
ED  - Indian standards institution                                                                                                                                                                                                                                   . 
TI  - Method for measurement of pressure by means of manometers,IS:9118-1979 / 
U1  - 532.574 
PY  - 1979///
CY  - New Delhi : 
PB  - Indian standards institution , 
ER  -