APA (7th ed.) Citation

Labov, W. (1979). The social origins of sound change. Linguistic Agency.

Chicago Style (17th ed.) Citation

Labov, William. The Social Origins of Sound Change. Trier: Linguistic Agency, 1979.

MLA (9th ed.) Citation

Labov, William. The Social Origins of Sound Change. Linguistic Agency, 1979.

Warning: These citations may not always be 100% accurate.