Sources ~

Information
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Http://www.Americaslibrary.gov/es/ok/es_ok_dustbowl
_1.html

http://www.efoodsdirect.com/blog/wp-content/uploads/2012/08/drought-efoods1.jpg

http://geol105naturalhazards.voices.wooster.edu/files/2013/04/dbmapfinal.jpg

http://www.ldeo.columbia.edu/res/div/ocp/drought/dust_storms.shtmlrrr

http://www.history.com/news/10-things-you-may-not-know-about-the-dust-bowl

Photos
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http://www.pbs.org/kenburns/dustbowl/photos/