Sullivan, H., & Costello, B. (2015). "Still doing it by hand": Auden and the typewriter. Palgrave Macmillan.
Lua i Stíl Chicago (17ú heag.)Sullivan, H., agus B. Costello. "Still Doing It by Hand": Auden and the Typewriter. Palgrave Macmillan, 2015.
Lua MLA (9ú heag.)Sullivan, H., agus B. Costello. "Still Doing It by Hand": Auden and the Typewriter. Palgrave Macmillan, 2015.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.