Dallas (Tex.). [A.W. Cullum & Co. Loading Dock], Photograph, July 28, 1959; (http://texashistory.unt.edu/ark:/67531/metapth118078/ : accessed August 28, 2015), University of North Texas Libraries, The Portal to Texas History, http://texashistory.unt.edu; crediting Dallas Municipal Archives , Dallas, Texas.
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