000 00291pam a2200133a 44500
082 _a621.84
_bP317d
100 _aPearson, G. H.
245 1 _aDESIGN OF VALVES AND FITTINGS
260 _aLondon
_bPitman
_c1953
300 _a430
650 _aValves
964 _gCIRC
997 _a7191 C
999 _c408388
_d408388