Hughes, T. (1999). Birthday letters. Faber and Faber.
Lua i Stíl Chicago (17ú heag.)Hughes, Ted. Birthday Letters. London: Faber and Faber, 1999.
Lua MLA (9ú heag.)Hughes, Ted. Birthday Letters. Faber and Faber, 1999.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.