Beethoven, L. v., & Backhaus, W. Sonate f-moll, op. 57: Sonata "Appassionata". Orbis [u.a.].
Cita Chicago (17th ed.)Beethoven, Ludwig van, i Wilhelm Backhaus. Sonate F-moll, Op. 57: Sonata "Appassionata". [S.l.]: Orbis [u.a.].
Cita MLA (8th ed.)Beethoven, Ludwig van, i Wilhelm Backhaus. Sonate F-moll, Op. 57: Sonata "Appassionata". Orbis [u.a.].
Atenció: Aquestes cites poden no estar 100% correctes.