Ingram, M. D. (1962). Vocal technique for children and youth. Abingdon.
Citación estilo ChicagoIngram, Madeline D. Vocal Technique for Children and Youth. New York: Abingdon, 1962.
Cita MLAIngram, Madeline D. Vocal Technique for Children and Youth. Abingdon, 1962.
Warning: These citations may not always be 100% accurate.