Hume, D. (2001). Of essay writing. Alex Catalogue.
Lua i Stíl Chicago (17ú heag.)Hume, David. Of Essay Writing. Raleigh, NC: Alex Catalogue, 2001.
Lua MLA (9ú heag.)Hume, David. Of Essay Writing. Alex Catalogue, 2001.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.