Não informado. (1983). Cable television business. Cardiff Publishing.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Cable Television Business. Englewood, Colo: Cardiff Publishing, 1983.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Cable Television Business. Cardiff Publishing, 1983.
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