Harabin Simon. (2013). Does Spelling matter? Oxford Universirty Press.
Lua i Stíl Chicago (17ú heag.)Harabin Simon. Does Spelling Matter? Oxford: Oxford Universirty Press, 2013.
Lua MLA (9ú heag.)Harabin Simon. Does Spelling Matter? Oxford Universirty Press, 2013.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.