References

Crepeau, B. (2006). Thomas Edison. Thomas Alva Edison, 1-2.

Famous Scientists. (n.d.). Science Blog RSS. Retrieved November 25, 2013, from http://www.famousscientists.org/thomas-alva-edison/

Thomas Edison's biography :: Edison Invents! :: Smithsonian Lemelson Center. (n.d.). Thomas Edison's biography :: Edison Invents! :: Smithsonian Lemelson Center. Retrieved November 23,                 2013, from http://invention.smithsonian.org/centerpieces/edison/000_story_02.asp

Timeline of Thomas Edison's Life. (n.d.). PBS. Retrieved November 25, 2013, from http://www.pbs.org/wgbh/amex/edison/timeline/index.html

Year. (2013, November 16). Thomas Edison. National Parks Service. Retrieved November 24, 2013, from http://www.nps.gov/edis/forkids/timeline-of-edison-and-his-inventions.htm