02013nam0-22004331i-450-99000048546040332120090227120909.0000048546FED01000048546(Aleph)000048546FED0100004854620020821d1970----km-y0itay50------baenga-------101yyXIIth plenary assembly, New Delhi, 1970International radio consultative committe C.C.I.R.GenevaInternational telecommunication union19707 v. in 10ill.25 cm1. v.: Spectrum utilization and monitoring (study group 1);2. v. part 1: Propagation in non-ionized media;2. v. part 2: Ionospheric propagation;3. v.: Fixed service at frequencies below about 30MHz [etc.];4. v. part 1: Fixed service using radio-relay systems...[etc.];4. v. part 2: Fixed service using communication satellites;5. v. part 1: Broadcasting service...problems common to sound broadcasting...[etc.];5. v. part 2: Broadcasting service (television);6 v.: mobile services;7 v.: Information concerning the XIIth plenary assembly structure of the C.C.I.R.TelecomunicazioniCongressiIngegneria delle comunicazioniRadioCongressi621.38International radio consultative committee, plenary assembly<12. ;1970 ;New Delhi>491681ITUNINARICAUNIMARCBK99000048546040332110 PRO 360/17364DINEL10 PRO 360/2A7365DINEL10 PRO 360/2B7365DINEL10 PRO 360/37366DINEL10 PRO 360/4A7367DINEL10 PRO 360/4B7367DINEL10 PRO 360/5A7368DINEL10 PRO 360/5B7368DINEL10 PRO 360/67369DINEL10 PRO 360/77370DINELDINELXIIth plenary assembly, New Delhi, 1970332526UNINA