00319nam a2200121Ia 45000030006000000080041000060400015000471000037000622450051000992600018001505460012001680050017001800STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aBensal Raj, K.; Bansal Rajiv, V.  aOrganic chemistry problems and their solutions  bNew Agec1999  aEnglish20220125170318.0