Culpepper, Cody B.. [Bish Mathis Typewriting School], Photograph, ca. 1950; digital images, (http://texashistory.unt.edu/ark:/67531/metapth191277/ : accessed April 18, 2014), University of North Texas Libraries, The Portal to Texas History, http://texashistory.unt.edu; crediting Longview Public Library, Longview, Texas.
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