APA (7th ed.) Citation

Keegan, J. (1978). The face of battle. Penguin Books.

Chicago Style (17th ed.) Citation

Keegan, John. The Face of Battle. Harmondsworth, Middx. [etc.]: Penguin Books, 1978.

MLA (9th ed.) Citation

Keegan, John. The Face of Battle. Penguin Books, 1978.

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