Dixon, Chas. D. (Charles D.). The Menace, an Exposition of Quackery Nostrum Exploitation and Reminiscences of a Country Doctor, Book, 1914; digital images, (http://texashistory.unt.edu/ark:/67531/metapth143569/ : accessed June 18, 2013), University of North Texas Libraries, The Portal to Texas History, http://texashistory.unt.edu; crediting University of Texas Health Science Center Libraries , San Antonio, Texas.
