(1998). Word power. National Text Book.
Lua i Stíl Chicago (17ú heag.)Word Power. National Text Book, 1998.
Lua MLA (8ú heag.)Word Power. National Text Book, 1998.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
Lua APA (7ú heag.)