Cita APA (7a ed.)

Rolland, R. (1926). Ludwig van Beethoven. Rotapfel.

Cita Chicago Style (17a ed.)

Rolland, Romain. Ludwig Van Beethoven. Zürich ; Leipzig: Rotapfel, 1926.

Cita MLA (9a ed.)

Rolland, Romain. Ludwig Van Beethoven. Rotapfel, 1926.