000 00311nam a22001457a 4500
999 _c32157
_d32157
020 _a9788122435856
082 _a547.27
100 _aBansal, Raj K.
245 _aHeterocyclic Chemistry
250 _a5th
260 _aNew Delhi
_bNew Age
_c2018
300 _a561 p.
546 _aEnglish
942 _cBK