APA

Raubicheck L., Davis E. H. & Carll L. A. (19401939). Voice and speech problems. New York: Prentice-Hall.

Chicago

Raubicheck Letitia, Davis Estelle Headley and Carll Lydia Adèle. 19401939. Voice and speech problems. New York: Prentice-Hall.

Harvard

Raubicheck L., Davis E. H. and Carll L. A. (19401939). Voice and speech problems. New York: Prentice-Hall.

MLA

Raubicheck Letitia, Davis Estelle Headley and Carll Lydia Adèle. Voice and speech problems. New York: Prentice-Hall. 19401939.