N. W. Ayer & Son. N. W. Ayer & Son's American Newspaper Annual: containing a Catalogue of American Newspapers, a List of All Newspapers of the United States and Canada, 1906, Volume 1. Philadelphia, Pennsylvania. UNT Digital Library. http://digital.library.unt.edu/ark:/67531/metadc9299/. Accessed October 2, 2014.
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