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Dyfyniad Arddull ChicagoHEAD, Sydney W. Broadcasting In America A Survey Of Television, Radio And New Technologies Sydney W. Head And Christopher H. Sterling. Houghton Mifflin Company, 1982.
Dyfyniad MLAHEAD, Sydney W. Broadcasting In America A Survey Of Television, Radio And New Technologies Sydney W. Head And Christopher H. Sterling. Houghton Mifflin Company, 1982.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.