00283nam a2200121Ia 4500008004100000100001100041245004200052260002200094300000900116650001400125942000700139999001500146190216s9999||||xx |||||||||||||| ||und||  aSharma 0aNatural Products In Organic Chemistry  bK Nath & Coc1974  a493p  aChemistry  cBK  c2299d2299