Proposed characterization of tornadoes and hurricanes by area and intensity
by T. Theodore Fujita
(SMRP research paper, no. 91)
Satellite and Mesometeorology Research Project, Dept. of the Geophysical Sciences, University of Chicago, 1971
"February 1971"
Includes index and bibliographical references (p. 40-41)
Satellite and Mesometeorology Research Project, Dept. of the Geophysical Sciences, University of Chicago