Sheeler, W. D. M., & Markley, R. W. (1991). Sounds and rhythm: A pronunciation course (2nd ed.). Prentice Hall.
Chicago Style aipamenaSheeler, Willard De Mont, and Rayner W. Markley. Sounds and Rhythm: A Pronunciation Course. 2nd ed. Englewood Cliffs, N.J: Prentice Hall, 1991.
MLA aipamenaSheeler, Willard De Mont, and Rayner W. Markley. Sounds and Rhythm: A Pronunciation Course. 2nd ed. Prentice Hall, 1991.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.