00327nam a2200121Ia 4500008004100000041001200041082001300053100005400066245003900120250001200159260002600171300000800197231217s9999    xx            000 0 und d  aEnglish  a621  ROY  aRoy K P Choudhury, S K Hajra Choudhury, A K Hajra 0aElements of mechanical engineering  a5th ed.  c1988bMedia Promoters  a561