Van Riper, Charles, 1905-1994. Voice and articulation, by Charles Van Riper and John V. Irwin. - Englewood Cliffs, N.J., Prentice-Hall, 1958. - 566 p. illus. 22 cm. LCCN: 58010592 Subjects--Topical Terms: Voice.Speech.Speech therapy. LC Class. No.: PN 4162 / .V34