Bibliography
"Frank Epperson." Inventor of the Week. MIT School of Engineering, n.d. Web. 30 Jan. 2013. <http://web.mit.edu/invent/iow/epperson.html>.
Jones, Charlotte Foltz. Mistakes That Worked. Illus. John O'Brien. New York: Doubleday, 1991. Print.
Wulffson, Don L. The Kid Who Invented the Popsicle and Other Surprising Stories about Inventionss. New York: Cobblehill, 1997. Print.
Jones, Charlotte Foltz. Mistakes That Worked. Illus. John O'Brien. New York: Doubleday, 1991. Print.
Wulffson, Don L. The Kid Who Invented the Popsicle and Other Surprising Stories about Inventionss. New York: Cobblehill, 1997. Print.