Tyler, J. E. A. (2004). The complete Tolkien companion (1st U.S. ed.). St. Martin's Press.
Lua i Stíl Chicago (17ú heag.)Tyler, J. E. A. The Complete Tolkien Companion. 1st U.S. ed. New York: St. Martin's Press, 2004.
Lua MLA (8ú heag.)Tyler, J. E. A. The Complete Tolkien Companion. 1st U.S. ed. St. Martin's Press, 2004.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.