Cita APA (7th ed.)

Arnold, D., & Fortune, N. (1973). The Beethoven companion. Faber and Faber.

Cita Chicago (17th ed.)

Arnold, Denis, i Nigel Fortune. The Beethoven Companion. Londres: Faber and Faber, 1973.

Cita MLA (9th ed.)

Arnold, Denis, i Nigel Fortune. The Beethoven Companion. Faber and Faber, 1973.