Areal Geology: Van Horn Quadrangle

Citation

United States. Dept. of the Interior. Areal Geology: Van Horn Quadrangle, Map, January 1914; (http://texashistory.unt.edu/ark:/67531/metadc11823/ : accessed December 17, 2014), University of North Texas Libraries, The Portal to Texas History, http://texashistory.unt.edu; crediting UNT Libraries, Denton, Texas.

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