Levy, Louis, 1911- Voice and diction handbook, by Louis Levy, Edward W. Mammen [and] Robert Sonkin. With an introduction by Gustav F. Schulz. - New York, Prentice-Hall, 1950. - viii, 112 p. 22 cm. LCCN: 50005423 Subjects--Topical Terms: Voice culture.English language--Pronunciation. LC Class. No.: PN4162 / .L48 Dewey Class. No.: 418 LEV