APA Style

Keegan, John. (1989). The Second World War . United States of America: Penguin Books.

Chicago Style

Keegan, John. The Second World War. United States of America: Penguin Books, 1989. Text.

MLA Style

Keegan, John. The Second World War. United States of America: Penguin Books, 1989. Text.

Turabian Style

Keegan, John. The Second World War. United States of America: Penguin Books, 1989. Print.