Tohutoro APA (7th ed.)

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

Tohutoru Kātū Chicago (17th ed.)

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

Tohutoro MLA (9th ed.)

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