Keep your voice healthy : a guide to the intelligent use and care of the speaking and singing voice

MLA

Brodnitz, Friedrich S., and Olin Downes. Keep Your Voice Healthy : a Guide to the Intelligent Use and Care of the Speaking and Singing Voice. New York: Harper, 1953.

APA

Brodnitz, F. S., & Downes, O. (1953). Keep your voice healthy : a guide to the intelligent use and care of the speaking and singing voice. New York: Harper.

Chicago

Brodnitz, Friedrich S., and Olin Downes. Keep Your Voice Healthy: A Guide to the Intelligent Use and Care of the Speaking and Singing Voice. New York: Harper, 1953.