Lua APA (7ú heag.)
Soanes, C., & Ferguson, S. (2009). Oxford a-z of spelling. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)
Soanes, Catherina, agus Sheila Ferguson. Oxford A-z of Spelling. New Delhi: Oxford University Press, 2009.
Lua MLA (9ú heag.)
Soanes, Catherina, agus Sheila Ferguson. Oxford A-z of Spelling. Oxford University Press, 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.