Orpen, G. H. (1911). Ireland under the Normans 1169-1216. Clarendon Press.
Chicago Style (17th ed.) CitationOrpen, Goddard Henry. Ireland Under the Normans 1169-1216. Oxford: Clarendon Press, 1911.
MLA (9th ed.) CitationOrpen, Goddard Henry. Ireland Under the Normans 1169-1216. Clarendon Press, 1911.
Warning: These citations may not always be 100% accurate.