(1992). The penguin spelling dictionary. Bloomsbury Books;.
Lua i Stíl Chicago (17ú heag.)The Penguin Spelling Dictionary. London: Bloomsbury Books;, 1992.
Lua MLA (9ú heag.)The Penguin Spelling Dictionary. Bloomsbury Books;, 1992.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.