J.R.R. Tolkien. (1991). The Hobbit: The Prelude to The Lord of the Rings. Harper Collins Publishers.
Lua i Stíl Chicago (17ú heag.)J.R.R. Tolkien. The Hobbit: The Prelude to The Lord of the Rings. Great Britain: Harper Collins Publishers, 1991.
Lua MLA (9ú heag.)J.R.R. Tolkien. The Hobbit: The Prelude to The Lord of the Rings. Harper Collins Publishers, 1991.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.