United States. Federal Communications Commission. FCC Record, Volume 27, No. 3, Pages 1878 to 2785, February 21 - March 16, 2012, book, March 2012; (https://digital.library.unt.edu/ark:/67531/metadc94252/m1/384/: accessed May 28, 2024), University of North Texas Libraries, UNT Digital Library, digital.library.unt.edu; .