00261nam a22001217a 450000500170000002000180001708200130003510000200004824500230006826000260009130000090011749000130012620251122145139.0  a9789552313844  a547bGUN  aGuneratne, R.D.  aOrganic Chemistry/  aNawala:bOUSL,c2012.  a94p.  aCMF 2205