Keeler, Matthew (Spring 2006). "Charles H. Fuller". Pennsylvania Center for the Book. Penn State University. Archived from the original on May 15, 2013. Retrieved March 13, 2014.
Keeler, Matthew (Spring 2006). "Charles H. Fuller". Pennsylvania Center for the Book. Penn State University. Archived from the original on May 15, 2013. Retrieved March 13, 2014.