APA (7th ed.) Citation

Ludlum, D. M. (1970). Early American tornadoes, 1586-1870. American Meteorological Society.

Chicago Style (17th ed.) Citation

Ludlum, David M. Early American Tornadoes, 1586-1870. Boston: American Meteorological Society, 1970.

MLA (9th ed.) Citation

Ludlum, David M. Early American Tornadoes, 1586-1870. American Meteorological Society, 1970.

Warning: These citations may not always be 100% accurate.