APA

Kingdon R., . (1958). English intonation practice. London: Lngmans.

Chicago

Kingdon Roger, . 1958. English intonation practice. London: Lngmans.

Harvard

Kingdon R., . (1958). English intonation practice. London: Lngmans.

MLA

Kingdon Roger, . English intonation practice. London: Lngmans. 1958.