Cita APA (7a ed.)

Ladefoged, P., & Johnson, K. (2015). A course in phonetics (Seventh edition.). CENGAGE Learning.

Cita Chicago Style (17a ed.)

Ladefoged, Peter, y Keith Johnson. A Course in Phonetics. Seventh edition. Stamford, CT: CENGAGE Learning, 2015.

Cita MLA (9a ed.)

Ladefoged, Peter, y Keith Johnson. A Course in Phonetics. Seventh edition. CENGAGE Learning, 2015.