APA (7th ed.) Citation

Flora, S. D. (1953). Tornadoes of the United States. University of Oklahoma Press.

Chicago Style (17th ed.) Citation

Flora, Snowden D. Tornadoes of the United States. Norman: University of Oklahoma Press, 1953.

MLA (9th ed.) Citation

Flora, Snowden D. Tornadoes of the United States. University of Oklahoma Press, 1953.