Cita APA (7a ed.)

Parkin, K. (1969). Ideal voice and speech training: A book of exercises (Rev., with additional material.). S. French.

Cita Chicago Style (17a ed.)

Parkin, Ken. Ideal Voice and Speech Training: A Book of Exercises. Rev., with additional material. London ; New York: S. French, 1969.

Cita MLA (9a ed.)

Parkin, Ken. Ideal Voice and Speech Training: A Book of Exercises. Rev., with additional material. S. French, 1969.