United States. Federal Communications Commission. FCC Record, Volume 27, No. 11, Pages 8850 to 9847, July 30 - August 17, 2012, book, August 2012; (https://digital.library.unt.edu/ark:/67531/metadc133015/m1/11/: accessed September 24, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .