Polio. (2005, October 21). Retrieved February 22, 2025, from http://www.essayworld.com/essays/Polio/35235
"Polio." Essayworld.com. Essayworld.com, 21 Oct. 2005. Web. 22 Feb. 2025. <http://www.essayworld.com/essays/Polio/35235>
"Polio." Essayworld.com. October 21, 2005. Accessed February 22, 2025. http://www.essayworld.com/essays/Polio/35235.
"Polio." Essayworld.com. October 21, 2005. Accessed February 22, 2025. http://www.essayworld.com/essays/Polio/35235.