TY  - BOOK
AU  - Zappe, R.W.
TI  - Valve selection handbook
SN  - 8172244177
U1  - 621.8 
PY  - 1995///
CY  - Calcutta
PB  - ; Jaico Publishing House
KW  - Engineering
KW  - Machine Engineering
KW  - Valve
ER  -