APA (7th ed.) Citation

Strachan, H. (2001). The First World War. Oxford University Press.

Chicago Style (17th ed.) Citation

Strachan, Hew. The First World War. Oxford [England] ; New York: Oxford University Press, 2001.

MLA (9th ed.) Citation

Strachan, Hew. The First World War. Oxford University Press, 2001.