Abbott, G. (1997). Conditional. Longman Green.
Lua i Stíl Chicago (17ú heag.)Abbott, G. Conditional. London: Longman Green, 1997.
Lua MLA (9ú heag.)Abbott, G. Conditional. Longman Green, 1997.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.