Cita APA (7th ed.)

Herfurth, C. P. (1937). A tune a day for viola. The Boston Music.

Cita Chicago (17th ed.)

Herfurth, C. Paul. A Tune a Day for Viola. Boston: The Boston Music, 1937.

Cita MLA (9th ed.)

Herfurth, C. Paul. A Tune a Day for Viola. The Boston Music, 1937.