"Chapter 11: Making the Connection." Gale Encyclopedia of the Unusual and Unexplained. The Gale Group Inc. 2003. Encyclopedia.com. 10 Nov. 2009 <http://www.encyclopedia.com>.
"Chapter 11: Making the Connection." Gale Encyclopedia of the Unusual and Unexplained. The Gale Group Inc. 2003. Encyclopedia.com. (November 10, 2009). http://www.encyclopedia.com/doc/1G2-3406300256.html
"Chapter 11: Making the Connection." Gale Encyclopedia of the Unusual and Unexplained. The Gale Group Inc. 2003. Retrieved November 10, 2009 from Encyclopedia.com: http://www.encyclopedia.com/doc/1G2-3406300256.html