Levy, Louis 1911- Voice and speech handbook / Louis Levy, Edward W. Mammen [and] Robert Sonkin. With an introd. by Gustav F. Schulz. - New York : Prentice-Hall, c1955 [printing 1961]. - v, 138 p. ; 21 cm. "A revision of the authors' Voice and diction handbook." Subjects--Topical Terms: Voice culture.English language--Pronunciation. Dewey Class. No.: 808.5 / LEV 1961