00550nam a2200193 a 450000100060000000300080000600500170001400800410003103500190007204000270009104100080011808200260012611000110015224500800016326000280024330000210027165000480029265000160034069684BD-RjUL20211209081920.0170413s1968    fr           i100 0 eng d  a(BD-RjUL)69896  aDLCcDLCdBD-RjULbeng  aeng00a621.383223bCOM 1968  aUnesco00aCommunication in the space age :bthe use of satellites by the mass media.   aParis :bUnesco,cc1968  a200 p. ;c24 cm. 0aArtificial satellites in telecommunication. 0aMass media.