Bibliography
Bizarre Stuff at http://freeweb.pdq.net/headstrong/hurr.htm
Author: Brian Carusella, Copyrighted: 1998-00 

How Stuff Works Online at http://www.howstuffworks.com
Author: unknown, Copyrighted:1998-00; search term tornado

Tornado, Author:  Stephan Kramer, Copyrighted: 1992

National Weather Service
http://www.nws.noaa.gov/om/tornado.htm
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