00335nam a2200133Ia 4500100003200000650002700032490000700059654003300066245003300099260003100132082001900163300000700182546001200189  aDanilson/ G.L/ Walker /R.S   aElectrical Engineering  vII  aRadio System For Technicions  aRadio System For Technicions  bButtersworthaLondonc1981  a621.3bDan/Wal  a75  aENGLISH