00301cam a2200169   450000500170000024500390001702000050005610000210006104400050008225000050008704100080009230000050010050000050010583000050011026000090011508200070012420260711133827.0  aMachine shop: heory and practiceb  a  aHallett, Fred H.  a  a  aspa  a  a  v  abc  ab