Highet, G. The mystery of Edwin Drood: Tolkien and time fiction.
Lua i Stíl Chicago (17ú heag.)Highet, Gilbert. The Mystery of Edwin Drood: Tolkien and Time Fiction.
Lua MLA (8ú heag.)Highet, Gilbert. The Mystery of Edwin Drood: Tolkien and Time Fiction.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.