O'BRIEN NEIL. (2005). ENGLISH USAGE.
Lua i Stíl Chicago (17ú heag.)O'BRIEN NEIL. ENGLISH USAGE. 2005.
Lua MLA (9ú heag.)O'BRIEN NEIL. ENGLISH USAGE. 2005.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
Lua APA (7ú heag.)