Steimel, H., & Schneidewind, F. (2010). Music in Middle-earth. Walking Tree Publishers.
Lua i Stíl Chicago (17ú heag.)Steimel, Heidi, agus Friedhelm Schneidewind. Music in Middle-earth. Zurich: Walking Tree Publishers, 2010.
Lua MLA (8ú heag.)Steimel, Heidi, agus Friedhelm Schneidewind. Music in Middle-earth. Walking Tree Publishers, 2010.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.