000 00274nas a22001217a 4500
008 191215s2019 xx 000 0 und d
082 _a540/NAT
100 _aNatu A D
245 _aOrganic Chemistry Fybsc
250 _a1st
260 _bNirali ,Pune
_c2019
300 _a104
999 _c214050
_d214050