Soil Survey of Karnes County, Texas, book, 1999; (https://texashistory.unt.edu/ark:/67531/metapth130226/m1/1/: accessed July 9, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Soil Survey of Karnes County, Texas, book, 1999; (https://texashistory.unt.edu/ark:/67531/metapth130226/m1/1/: accessed July 9, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .