TY  - BOOK
AU  - Zappe, R. W.,
TI  -  Valve selection handbook: engineering fundamentals for selecting manual valves, check valves, pressure relief valves, and rupture discs 
SN  - 0884158861
U1  - 621.8/4  21
PY  - 1999///
CY  - Houston, Tex.
PB  - Gulf Pub. Co.
KW  - Valves
KW  -  Handbooks, manuals, etc
N1  - Includes bibliographical references (p.317-320) and index
UR  -  http://www.loc.gov/catdir/toc/els051/98036482.h tml
UR  -  http://www.loc.gov/catdir/description/els03 3/98036482.html
ER  -