Cita APA

Ladefoged, P., & Johnson, K. (2015). A course in phonetics (Seventh edition.). Connecticut, United States of America: Cengage Learning.

Citación estilo Chicago

Ladefoged, Peter, y Keith Johnson. A Course in Phonetics. Seventh edition. Connecticut, United States of America: Cengage Learning, 2015.

Cita MLA

Ladefoged, Peter, y Keith Johnson. A Course in Phonetics. Seventh edition. Connecticut, United States of America: Cengage Learning, 2015.