Regional Water Plan: Region I (East Texas), 2016, Volume II. Appendices
Regional Water Plan: Region I (East Texas), 2016, Volume II. Appendices, report, December 1, 2015; Nacogdoches, Texas. (texashistory.unt.edu/ark:/67531/metapth838444/: accessed January 16, 2019), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; crediting UNT Libraries Government Documents Department.