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- Radio and Early Television. University of Chicago Press. p. 162. ISBN 978-0-226-46695-8. Retrieved 16 March 2013. "Science Editors Organize; Group Forms Association...5 KB (526 words) - 06:17, 8 March 2024
television. Chicago: University of Chicago Press. pp. 139–143. ISBN 978-0-226-46695-8. OCLC 567989954. Variety Radio Directory, 1939-1940 (3rd ed.). New...6 KB (614 words) - 20:06, 14 May 2024
