00481cam a22001578a 4500008004100000020002200041100001700063245008500080260004400165300003500209650002600244650002600270003000100296005001700297040000900314                                          a0750607939 (pbk.)1 aParr, Andrew10aHydraulics and pneumatics :ba technician's and engineer's guide /cAndrew Parr.  aOxford :bButterworth Heinemann,c1992.  aviii, 223 p. :bill. ;c24cm. 0 aPneumatic engineering  aHydraulic engineering20230123133625.0  cNUST