Não informado. (1983). Cable television business. Cardiff Publishing.
Chicago-referens (17:e uppl.)Não informado. Cable Television Business. Englewood, Colo: Cardiff Publishing, 1983.
MLA-referens (8:e uppl.)Não informado. Cable Television Business. Cardiff Publishing, 1983.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.