APA (7th ed.) Citation

Keegan, J. (1990). The Second World War (1st American edition.). Viking.

Chicago Style (17th ed.) Citation

Keegan, John. The Second World War. 1st American edition. New York: Viking, 1990.

MLA (9th ed.) Citation

Keegan, John. The Second World War. 1st American edition. Viking, 1990.

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