00845nam0-22003011i-450-99000032124040332120001010000032124FED01000032124(Aleph)000032124FED0100003212420001010d--------km-y0itay50------baitay-------001yy<<The >>chemical action of ultraviolet rays.Carleton Ellis and Alfred A. Wells.New YorkChemical Catalog Co.1925362 p., ill., 24 cm660Ellis,Carleton16979Wells,Alfred A.ITUNINARICAUNIMARCBK99000032124040332104 125-7CI 0357DINCHDINCHChemical action of ultraviolet rays130066UNINAING01