Hardcastle, E. L. F. (Edmund Lafayette), 1824-1899. Battles of Mexico : line of operations of the U.S. Army under the command of Major General Winfield Scott on the 19th and 20th of August, 1847. Philadelphia, Pennsylvania. UNT Digital Library. http://digital.library.unt.edu/ark:/67531/metadc29454/. Accessed December 18, 2013.
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