Howard B Bluestein (1999). Tornado Alley: Monster Storms of the Great Plains. New York, NY: Oxford University Press. ISBN0-19-510552-4.
Marlene Bradford (2001). Scanning the Skies: a History of Tornado Forecasting. University of Oklahoma Press. ISBN0-8061-3302-3. Unknown parameter |address= ignored (|location= suggested) (help)
Thomas P Grazulis (January 1997). Significant Tornadoes Update, 1992–1995. St. Johnsbury, VT: Environmental Films. ISBN1-879362-04-X.
