APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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