Cita APA (7th ed.)

Ladefoged, P., & Maddieson, I. (1996). The sounds of the world's languages. Blackwell Publishers.

Cita Chicago (17th ed.)

Ladefoged, Peter, i Ian Maddieson. The Sounds of the World's Languages. Oxford: Blackwell Publishers, 1996.

Cita MLA (9th ed.)

Ladefoged, Peter, i Ian Maddieson. The Sounds of the World's Languages. Blackwell Publishers, 1996.