APA (7th ed.) Citation

Keegan. (1977). Encyclopedia of World War II. Bison Books.

Chicago Style (17th ed.) Citation

Keegan. Encyclopedia of World War II. London: Bison Books, 1977.

MLA (8th ed.) Citation

Keegan. Encyclopedia of World War II. Bison Books, 1977.

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