APA (7th ed.) Citation

Regan, G. (1992). The Guinness book of decisive battles. Canopy Books.

Chicago Style (17th ed.) Citation

Regan, Geoffrey. The Guinness Book of Decisive Battles. New York: Canopy Books, 1992.

MLA (8th ed.) Citation

Regan, Geoffrey. The Guinness Book of Decisive Battles. Canopy Books, 1992.

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