Cita APA (7th ed.)

Beethoven, L. v., & Anderson, E. (1961). The letters of Beethoven. Macmillan & Co..

Cita Chicago (17th ed.)

Beethoven, Ludwig van, i Emily Anderson. The Letters of Beethoven. London: Macmillan & Co., 1961.

Cita MLA (8th ed.)

Beethoven, Ludwig van, i Emily Anderson. The Letters of Beethoven. Macmillan & Co., 1961.