APA (7th ed.) Citation

Ludlum, D. M. (1966). Early American winters. American Meteorological Society.

Chicago Style (17th ed.) Citation

Ludlum, David McWilliams. Early American Winters. Boston: American Meteorological Society, 1966.

MLA (8th ed.) Citation

Ludlum, David McWilliams. Early American Winters. American Meteorological Society, 1966.

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