Steimel, H., & Schneidewind, F. (2010). Music in Middle-earth. Walking Tree Publishers.
Chicago Style (17. basım) AtıfSteimel, Heidi, ve Friedhelm Schneidewind. Music in Middle-earth. Zurich: Walking Tree Publishers, 2010.
MLA (8th ed.) AtıfSteimel, Heidi, ve Friedhelm Schneidewind. Music in Middle-earth. Walking Tree Publishers, 2010.
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