LEADER 00876nam0-22003011i-450- 001 990000034930403321 035 $a000003493 035 $aFED01000003493 035 $a(Aleph)000003493FED01 035 $a000003493 100 $a20011111d--------km-y0itay50------ba 101 0 $aita 105 $ay-------001yy 200 1 $aPrinciples of comunication systems$fW. D. Hershberger. 210 $aNew York$cPrentice Hall$d1955 215 $aXIII, 253 p.$cill.$d22 cm 225 1 $aPrentice-Hall electrical engineering series 610 0 $aSistemi di comunicazione 676 $a621.382 700 1$aHershberger,$bWilliam Delmar$0801 801 0$aIT$bUNINA$gRICA$2UNIMARC 901 $aBK 912 $a990000034930403321 952 $a13 B 52 21$b21883$fFINBC 959 $aFINBC 996 $aPrinciples of comunication systems$9105851 997 $aUNINA DB $aING01