APA (7th ed.) Citation

Ladefoged, P., & Maddieson, I. (1997). The sounds of the world's languages (Reprint.). Blackwell.

Chicago Style (17th ed.) Citation

Ladefoged, Peter, and Ian Maddieson. The Sounds of the World's Languages. Reprint. Oxford ; Malden, Mass: Blackwell, 1997.

MLA (9th ed.) Citation

Ladefoged, Peter, and Ian Maddieson. The Sounds of the World's Languages. Reprint. Blackwell, 1997.