APA (7th ed.) Citation

Orpen, G. H. (1911). Ireland under the Normans. Clarendon Press.

Chicago Style (17th ed.) Citation

Orpen, Goddard Henry. Ireland Under the Normans. Oxford: Clarendon Press, 1911.

MLA (9th ed.) Citation

Orpen, Goddard Henry. Ireland Under the Normans. Clarendon Press, 1911.