APA (7th ed.) Citation

Bulkeley, J. P. (1921). The British empire: A short history. Clarendon Press.

Chicago Style (17th ed.) Citation

Bulkeley, J. P. The British Empire: A Short History. Oxford: Clarendon Press, 1921.

MLA (9th ed.) Citation

Bulkeley, J. P. The British Empire: A Short History. Clarendon Press, 1921.