00262nam a2200109Ia 4500008004100000082001500041100002600056245001400082250000900096260003800105300000900143240913s9999||||xx |||||||||||||| ||und||  a530  HAN/M  aH.S.Hans and S.P.Puri 0aMechanics  aNULL  bTata McGraw HillaNew Delhic1984  a387p