00912nam0-22003251i-450-99000048421040332120080118092243.00-201-56506-4000048421FED01000048421(Aleph)000048421FED0100004842120020821d1992----km-y0itay50------baenga-------001yyData communications, computer networks and open systemsFred Halsall3rd ed.England [etc.]Addison-Wesleyc1992772 p.ill.24 cmElectronic systems engineering seriesSistemi di trasmissione dei datiReti di computer004.6Halsall,FredITUNINARICAUNIMARCBK99000048421040332110 E II 4561106 DEDINELDINELUNINA