"burial." The Columbia Encyclopedia, Sixth Edition. 2008. Encyclopedia.com. 11 Nov. 2009 <http://www.encyclopedia.com>.
"burial." The Columbia Encyclopedia, Sixth Edition. 2008. Encyclopedia.com. (November 11, 2009). http://www.encyclopedia.com/doc/1E1-burial.html
"burial." The Columbia Encyclopedia, Sixth Edition. 2008. Retrieved November 11, 2009 from Encyclopedia.com: http://www.encyclopedia.com/doc/1E1-burial.html