00432nam a2200145   450000100060000000300030000600500170000900800410002603500190006703500180008605000240010410000210012824500950014926000420024435993UR20220427193735.0061105|||||||||||||||||||||||||||||||| d  a(janium) 35982  a(janium)35980 4aHE8689.4b.E43 19691 aEmery, Walter B.10aNational and international systems of broadcastingb : their history operation and control  bMichigan State University Pressc1969