00743nam0-22002891i-450-99000049170040332120071025123055.0000049170FED01000049170(Aleph)000049170FED0100004917020020821d1947----km-y0itay50------baenga-------001yyElectronicsF. G. SpreadburyLondonPitman1947698 p.ill.22 cmElettronica537.5Spreadbury,Frank George299605ITUNINARICAUNIMARCBK99000049170040332110 E I 182820DINELDINELElectronics333053UNINA