Robert Allen, E. (2010). The New Penguin English dictionary. Penguin.
Lua i Stíl Chicago (17ú heag.)Robert Allen, Edit. The New Penguin English Dictionary. Penguin, 2010.
Lua MLA (8ú heag.)Robert Allen, Edit. The New Penguin English Dictionary. Penguin, 2010.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.