000 00214nam a2200097Ia 4500
100 _aBANSAL RAJ K.
245 0 _aHETEROCYCLIC CHEMISTRY
260 _bNEW AGE
_aNEW DELHI
_c2020
300 _aXIV, 373P
942 _cBK
999 _c10429
_d10429