APA (7th ed.) Citation

Harris, J. P. (2009). Douglas Haig and the First World War (1. paperback ed.). Cambridge Univ. Press.

Chicago Style (17th ed.) Citation

Harris, J. P. Douglas Haig and the First World War. 1. paperback ed. Cambridge [u.a.]: Cambridge Univ. Press, 2009.

MLA (9th ed.) Citation

Harris, J. P. Douglas Haig and the First World War. 1. paperback ed. Cambridge Univ. Press, 2009.