Cooper, B. (2008). Beethoven. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Cooper, Barry. Beethoven. Oxford ; New York: Oxford University Press, 2008.
Lua MLA (9ú heag.)Cooper, Barry. Beethoven. Oxford University Press, 2008.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.