00720nam0-22002891i-450-99000032884040332120001010000032884FED01000032884(Aleph)000032884FED0100003288420001010d--------km-y0itay50------baitay-------001yyIsotopesF.W. Aston.LondonE. Arnold & Co.1922VIII,152 p., ill., 24 cm541Aston,F.W.336798ITUNINARICAUNIMARCBK99000032884040332104 151-18CI 0199DINCHDINCHIsotopes130666UNINAING01