APA (7th ed.) Citation

Keegan, J. (1998). The First World War. Hutchinson.

Chicago Style (17th ed.) Citation

Keegan, John. The First World War. London: Hutchinson, 1998.

MLA (8th ed.) Citation

Keegan, John. The First World War. Hutchinson, 1998.

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