Allen, R. L., Allen, V. F., & Shute, M. (1966). English sounds and their spellings: A handbook for teachers and students. New York: Thomas Y. Crowell Company.
Trích dẫn kiểu ChicagoAllen, Robert L., Virginia French Allen, và Margaret Shute. English Sounds and Their Spellings: A Handbook for Teachers and Students. New York: Thomas Y. Crowell Company, 1966.
Deismireacht MLAAllen, Robert L., Virginia French Allen, và Margaret Shute. English Sounds and Their Spellings: A Handbook for Teachers and Students. New York: Thomas Y. Crowell Company, 1966.
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