General soil map of Texas
Extended Citation
Texas Agricultural Experiment Station. and United States. Bureau of Chemistry and Soils.. General soil map of Texas, Map, 1931; digital image, (http://texashistory.unt.edu/ark:/67531/metapth19672 : accessed November 22, 2009), University of North Texas Libraries, The Portal to Texas History, http://texashistory.unt.edu; crediting University of North Texas Libraries, Denton, Texas.
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