00767nam0-22002891i-450-99000049034040332120071112095812.00-435-71485-6000049034FED01000049034(Aleph)000049034FED0100004903420020821d1973----km-y0itay50------baenga-------001yyGumm-effect logic devicesHans L. HartnagelLondonHeinemann educational books1973138 p.ill.24 cmEffetto Guun621.381'537Hartnagel,Hans L.ITUNINARICAUNIMARCBK99000049034040332110 E I 2238103DINELDINELUNINA