Citação APA (7ª ed.)

Westermann, D., & Ward, I. C. (1933). Practical phonetics for students of African languages. Published for the International Institute of African Languages & Cultures by Oxford University Press, H. Milford.

Citação do estilo Chicago (17ª ed.)

Westermann, Diedrich, e Ida C. Ward. Practical Phonetics for Students of African Languages. London: Published for the International Institute of African Languages & Cultures by Oxford University Press, H. Milford, 1933.

Citação MLA (8ª ed.)

Westermann, Diedrich, e Ida C. Ward. Practical Phonetics for Students of African Languages. Published for the International Institute of African Languages & Cultures by Oxford University Press, H. Milford, 1933.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.