Santa Anna, Antonio Lopez de. [Letter from Antonio Lopez de Santa Anna to Lorenzo de Zavala, April 12, 1829], Letter, April 12, 1829; digital images, (http://texashistory.unt.edu/ark:/67531/metapth6016/ : accessed July 29, 2014), University of North Texas Libraries, The Portal to Texas History, http://texashistory.unt.edu; crediting Dolph Briscoe Center for American History, Austin, Texas.
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