APA (7th ed.) Citation

Cawood, I., & McKinnon-Bell, D. (2001). The First World War. Routledge.

Chicago Style (17th ed.) Citation

Cawood, Ian, and David McKinnon-Bell. The First World War. London ; New York: Routledge, 2001.

MLA (9th ed.) Citation

Cawood, Ian, and David McKinnon-Bell. The First World War. Routledge, 2001.