00297nam a22001097a 4500040002200000082001900022100001900041245006700060250000800127260003500135300001700170  cKhanna Publishers  a621.9bA2771 M  aAgrawal S.B.P.  aMchine Building TechnologybWorkshop TechnologycS.B.P.Agrawal  a1st  aDehlibKhanna Publishersc1978  a395p.c23cm.