000 00337nam a2200157Ia 4500
008 220919s9999 xx 000 0 und d
020 _a81-7450-494-X
245 0 _aChemistry Part - I Text Book
250 _a1
260 _aNew Delhi
260 _bNCERT
260 _c2017
300 _a253
650 _aChemistry
942 _c11
999 _c160886
_d160886