Burchfield, R. W. (1972). A supplement to the Oxford English dictionary: Ed. by R. W. Burchfield. Clarendon Press.
Lua i Stíl Chicago (17ú heag.)Burchfield, Robert William. A Supplement to the Oxford English Dictionary: Ed. by R. W. Burchfield. Oxford: Clarendon Press, 1972.
Lua MLA (8ú heag.)Burchfield, Robert William. A Supplement to the Oxford English Dictionary: Ed. by R. W. Burchfield. Clarendon Press, 1972.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.