000 00347nam a22001337a 4500
020 _a9789381759509
082 _a547.59
_bSYL/H
100 _aSylvin,Morris
245 _aHeterocyclic Compounds
_cMorris Sylvin
260 _aNew Delhi
_bKaran Paperbacks
_c2019
300 _a91
650 _aHeterocyclic Compounds
_vOrganic Chemistry
942 _cBK
999 _c614729
_d614729