000 00343nam a2200157Ia 4500
008 220919s9999 xx 000 0 und d
020 _a81-7450-648-9
245 0 _aChemistry Textbook Part - I XII Science
250 _a1st
260 _aNA
260 _bNCERT
260 _c2018
300 _a287
650 _aChemistry
942 _c12
999 _c161028
_d161028