Robert C. Williams American Museum of Papermaking [online]. Atlanta, Georgia: Institute of Paper Science and Technology at Georgia Tech. http://www.ipst.gatech.edu/amp/index.html (28 July 2004).

Robert C. Williams American Museum of Papermaking [online]. Atlanta, Georgia: Institute of Paper Science and Technology at Georgia Tech. http://www.ipst.gatech.edu/amp/index.html (28 July 2004).