00329nam a2200121Ia 4500008004100000041000800041082001700049100002400066245004400090260001700134300001700151700003900168220530s9999    xx            000 0 und d  aeng  a631.304bCHO  aChoudhury Hajra S K  aElements of Workshop Technology Vol- II  aMumbaic2011  a712,I-11bPB  a Roy Nirjhar Choudhhury Hajra A K