APA (7th ed.) Zitazioa

Kingdon, R. (1972). English intonation practice. Longman.

Chicago Style (17th ed.) Zitazioa

Kingdon, Roger. English Intonation Practice. London: Longman, 1972.

MLA (9th ed.) Zitazioa

Kingdon, Roger. English Intonation Practice. Longman, 1972.