000 00309nam a2200121Ia 4500
008 230303s9999 xx 000 0 und d
041 _aeng
082 _a621.9 CHO
100 _aCHOUDHARY (S.K. Hajra)
245 _aElements Workshop Technology (Vol1)
260 _aMumbai
_bR: Media Promoters
365 _cRS
999 _c208470
_d208470