Chappell, V. C. (1966). Hume. Doubleday.
Lua i Stíl Chicago (17ú heag.)Chappell, V. C. Hume. Garden City, N.Y.: Doubleday, 1966.
Lua MLA (8ú heag.)Chappell, V. C. Hume. Doubleday, 1966.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.