[Vicente Filisola on the resistance of Tlalmanalco and Ameca, Letter, October 10, 1828; digital images, (http://texashistory.unt.edu/ark:/67531/metapth6696/ : accessed June 19, 2013), University of North Texas Libraries, The Portal to Texas History, http://texashistory.unt.edu; crediting The University of Texas at Austin, Austin, Texas.
