00351nam a2200121Ia 4500008004100000041000800041082001700049100002500066245004500091260003400136300002000170700003900190220530s9999    xx            000 0 und d  aeng  a631.304bCHO  aChoudhaury Hajra S K  aElements of Workshop Technology- Vol- II  aMumbaibMedia Promotor c2011  a712 P, I-11bPB  a Roy Nirjhar Choudhhury Hajra A K