Cita APA (7a ed.)

Kingdon, R. (1960). English intonation practice. Longmans.

Cita Chicago Style (17a ed.)

Kingdon, Roger. English Intonation Practice. London: Longmans, 1960.

Cita MLA (8a ed.)

Kingdon, Roger. English Intonation Practice. Longmans, 1960.