Polio. (2005, October 21). Retrieved April 24, 2024, from http://www.essayworld.com/essays/Polio/35235
"Polio." Essayworld.com. Essayworld.com, 21 Oct. 2005. Web. 24 Apr. 2024. <http://www.essayworld.com/essays/Polio/35235>
"Polio." Essayworld.com. October 21, 2005. Accessed April 24, 2024. http://www.essayworld.com/essays/Polio/35235.
"Polio." Essayworld.com. October 21, 2005. Accessed April 24, 2024. http://www.essayworld.com/essays/Polio/35235.