Wellman, G. (1998). The Heinemann English wordbuilder. Heinemann.
Lua i Stíl Chicago (17ú heag.)Wellman, Guy. The Heinemann English Wordbuilder. Oxford: Heinemann, 1998.
Lua MLA (8ú heag.)Wellman, Guy. The Heinemann English Wordbuilder. Heinemann, 1998.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.