Cita APA (7a ed.)

Wells, J., & Colson, G. (1971). Practical Phonetics. Pitman.

Cita Chicago Style (17a ed.)

Wells, J.C, y Greta Colson. Practical Phonetics. London: Pitman, 1971.

Cita MLA (9a ed.)

Wells, J.C, y Greta Colson. Practical Phonetics. Pitman, 1971.