Baldwin, S. P. (2003). J.R.R. Tolkien: His life and works. SparkNotes.
Lua i Stíl Chicago (17ú heag.)Baldwin, Stanley P. J.R.R. Tolkien: His Life and Works. New York, NY: SparkNotes, 2003.
Lua MLA (8ú heag.)Baldwin, Stanley P. J.R.R. Tolkien: His Life and Works. SparkNotes, 2003.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.