00427nam a2200133 a 4500008004100000020001500041050001500056100001900071245005100090246008200141260004000223300002100263350000900284120416s0000    ||||||||||||||||| ||    u  a0852986874  aTJ 164 Ins  aWhillock, R. G10aValves for power plant development and testing  asponsored by Steam Plant Committee of the Institution of Mechanical Engineers  aSuffolkbMechanical Engineersc1989  avi, 168p. : ill.  a0.00