00414nam a2200157Ia 4500003000900000008004100009040001600050080001700066100001700083245003500100260003500135300001600170650002600186650002300212650002100235IN-BaIIA211028s9999    xx            000 0 eng d  cIIA Library  a621.396bWEL  aWeller, B. F 0aRadio technologycB. F. Weller  aLondonbChapman and Hallc1946  aviii, 358p.  a Radio Engineering   a Radioelectronics  aNASA Thesaurus