000 00253nam a2200109Ia 4500
008 190719s9999 xx 000 0 und d
100 _aG.R.Chattwal
245 0 _aObjective Chemistry
260 _aN.D
_bAnmol
_c2001
650 _aChemistery
942 _cBK
999 _c15132
_d15132