TY  - BOOK
AU  - Zappe, R. W.
TI  - Valve Selection Handbook 
SN  - 8172244177
U1  - 621.8402 
PY  - 2005///
CY  - Mumbai : 
PB  - Jaico Publishing House, 
KW  - Valves Handbooks Manuals
N1  - YY
UR  - https://eaklibrary.neduet.edu.pk:8443/catalog/bk/books/toc/81-7224-417-7.pdf
ER  -