TY  - BOOK
AU  - Indian Standards Institution
TI  - Valve Inspection and Test (IS : 6157 - 1981)
U1  - IS : 6157 - 1981 
PY  - 1981///
CY  - New Delhi
PB  - Indian Standards Institution
KW  - Indian Standard - IT
N1  - IS : 6157 - 1981
ER  -