Cita APA (7a ed.)

Simandl, F., & Zimmermann, F. (1957). Gradus ad parnassum: 24 studies for string bass. International Music.

Cita Chicago Style (17a ed.)

Simandl, Franz, y Fred Zimmermann. Gradus Ad Parnassum: 24 Studies for String Bass. New York: International Music, 1957.

Cita MLA (9a ed.)

Simandl, Franz, y Fred Zimmermann. Gradus Ad Parnassum: 24 Studies for String Bass. International Music, 1957.