00503nam a22001817a 4500003000600000005001700006008004100023020001800064040000900082082001300091100001600104245008300120260002800203300003500231500001800266650001400284650002300298GCWUF20220223033447.0170524b        xxu||||| |||| 00| 0 eng d  a9788131728093  cMAIN  a547bSIN  aSingh, D.N.  aBasic Concepts of Organic Chemistry for Competitive Examnination/cSingh, D.N.  aIndia:bPearson,c2010.  av, 561 p.bill ;c24 cm.fP.B.  aInclude Index  aChemistry  vChemistry, Organic