Note that it may still be copyrighted in jurisdictions that do not apply the rule of the shorter term for US works (depending on the date of the author's death), such as Canada (70 years p.m.a.), Mainland China (50 years p.m.a., not Hong Kong or Macao), Germany (70 years p.m.a.), Mexico (100 years p.m.a.), Switzerland (70 years p.m.a.), and other countries with individual treaties.
A copyright search for the title Radio Album was conducted in periodicals for the years 1975 and 1976; the only result was a magazine called Radioland and Television, which was published by a different company. There is no evidence Dell Publications continues to claim copyright on this magazine.
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{{Information |Description=Photo of Fletcher Markle directing the CBS radio program ''Studio One''. |Source=[http://www.otrr.org/FILES/Magz_pdf/Radio%20Album/Radio%20Album%2048Summer.pdf OTRR.org] page 34-Radio Album magazine-summer 1948 |Date=Summer 1...