00836nam0-22003011i-450-99000048650040332120071210160718.00-471-27789-4000048650FED01000048650(Aleph)000048650FED0100004865020020821d1975----km-y0itay50------baenga-------001yyTelecommunication transmission hanbookRoger L. FreemanNew York [etc.]John Wiley & Sonsc1975587 p.ill.23 cm<<A >>Wiley-Interscience publicationTelecomunicazioni621.382'23Freeman,Roger L.ITUNINARICAUNIMARCBK99000048650040332110 E II 2218867DINELDINELUNINA