Cita APA (7th ed.)

Beethoven, L. v., Von Bulow, H., & Lebert, S. Adagio from Sonata op.81. G. Schirmer.

Cita Chicago (17th ed.)

Beethoven, Ludwig van, Hans Von Bulow, i Sigmund Lebert. Adagio from Sonata Op.81. New York: G. Schirmer.

Cita MLA (9th ed.)

Beethoven, Ludwig van, et al. Adagio from Sonata Op.81. G. Schirmer.