Wood, F. (1981). Current English Usage. Macmillan.
Lua i Stíl Chicago (17ú heag.)Wood, Freederick. Current English Usage. London: Macmillan, 1981.
Lua MLA (9ú heag.)Wood, Freederick. Current English Usage. Macmillan, 1981.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.