Aeroflex Corporation. Robinson Aerial Surveys Division.. [Aerial Photograph of Central Hidalgo], Photograph, October 26, 1968; digital images, (http://texashistory.unt.edu/ark:/67531/metapth90996/ : accessed December 19, 2013), University of North Texas Libraries, The Portal to Texas History, http://texashistory.unt.edu; crediting McAllen Public Library, McAllen, Texas.
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