APA (7th ed.) Citation

Carlisle, R. P. (2007). World War I. Facts On File, Inc..

Chicago Style (17th ed.) Citation

Carlisle, Rodney P. World War I. New York: Facts On File, Inc., 2007.

MLA (9th ed.) Citation

Carlisle, Rodney P. World War I. Facts On File, Inc., 2007.

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