United States. Federal Communications Commission. [Federal Communications Commission Order for Construction Permit, Eugene J. Roth, April 4, 1947], legal document, April 4, 1947; (https://texashistory.unt.edu/ark:/67531/metapth249395/m1/1/: accessed August 23, 2019), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .