Cita APA (7th ed.)

Cleall, C. (1955). Voice production in choral technique. Novello & Co..

Cita Chicago (17th ed.)

Cleall, Charles. Voice Production in Choral Technique. London: Novello & Co., 1955.

Cita MLA (8th ed.)

Cleall, Charles. Voice Production in Choral Technique. Novello & Co., 1955.