000 00301nam a2200121Ia 4500
008 220201s1971 xx 000 0 eng d
082 _a621.9
_bHAJ
100 _aChoudhury, SK Hajra & Bose
245 0 _aElements of workshop technology
260 _bAisa Pub Co.
_c1971
300 _a572
942 _2ddc
999 _c78538
_d78538