00261nam a22001097a 4500003000400000008004100004082001700045100002100062245002400083260003600107300000800143OSt240108b        |||||||| |||| 00| 0 eng d  a670.42bN24W  aNarang, G. B. S.  aWorkshop technology  aDelhibKhanna Publicationc1979  a564