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by Marshall Brain

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    UFO Crashes in Roswell, N.M.
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    Brain, Marshall.  "July 7, 1947: UFO Crashes in Roswell, N.M."  01 July 2007.  HowStuffWorks.com. <http://science.howstuffworks.com/space/aliens-ufos/roswell-ufo-crash.htm>  28 May 2012.
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