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Walter E. Diemer “Bubble Gum.” (Online) Available www.ideafinder.com/history/inventions/story084.htm Accessed 28 May, 2002. Hendrickson, R. “Since 1928 It’s Been Boom and Bust With Bubble Gum.” Smithsonian Magazine. Vol.21, Issue 4. July 1990. Reynolds, Patrick M. Pennsylvania Firsts. The Famous, Infamous, and Quirky of the Keystone State. Philadelphia: Camino Books, Inc., c1999. “Walter Diemer’s Bubble Gum.” American Scene: Lives Volume 3 Danbury, CT: Grolier Educational, c2001. “Walter E. Diemer.” Biography Today, Vol. 7,
No. 2. April 1998. |