shack+bibliography


 * Works Cited**
 * 1) **1.** **Allison, Linda, and David Katz. //Blood and Guts: a Working Guide to Your Own Insides//****. Boston: Little, Brown, 1976. Print.**
 * 2) **2.** **Houghton, Gillian. //Guts: the Digestive System//****. New York: PowerKids, 2007. Print.**
 * 3) **3.** **//KidsHealth - the Web's Most Visited Site about Children's Health//****. Web. 07 June 2011. .**