APA

United States, . (1993). The Widespread November 21-23, 1992, tornado outbreak: Houston to Raleigh and Gulf Coast to Ohio valley. Silver Spring, Md: U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, National Weather Service.

Chicago

United States, . 1993. The Widespread November 21-23, 1992, tornado outbreak: Houston to Raleigh and Gulf Coast to Ohio valley. Silver Spring, Md: U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, National Weather Service.

Harvard

United States, . (1993). The Widespread November 21-23, 1992, tornado outbreak: Houston to Raleigh and Gulf Coast to Ohio valley. Silver Spring, Md: U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, National Weather Service.

MLA

United States, . The Widespread November 21-23, 1992, tornado outbreak: Houston to Raleigh and Gulf Coast to Ohio valley. Silver Spring, Md: U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, National Weather Service. 1993.