Soil Survey of Concho County, Texas, book, 1988; (https://texashistory.unt.edu/ark:/67531/metapth130209/m1/27/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .
Soil Survey of Concho County, Texas, book, 1988; (https://texashistory.unt.edu/ark:/67531/metapth130209/m1/27/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .