Rolland, R., Kemp, E. S., & Pfister, G. A. (1931). Goethe and Beethoven. Harper & Brothers.
Lua i Stíl Chicago (17ú heag.)Rolland, Romain, Edgar Stephen Kemp, agus George Arnold Pfister. Goethe and Beethoven. New York: Harper & Brothers, 1931.
Lua MLA (9ú heag.)Rolland, Romain, et al. Goethe and Beethoven. Harper & Brothers, 1931.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.