Cita APA (7th ed.)

(1936). The a cappella singer: Mixed. E.C. Shirmer Music.

Cita Chicago (17th ed.)

The a Cappella Singer: Mixed. Boston: E.C. Shirmer Music, 1936.

Cita MLA (9th ed.)

The a Cappella Singer: Mixed. E.C. Shirmer Music, 1936.