APA (7th ed.) Citation

Labov, W. (1978). Sociolinguistic patterns / by William Labov. Blackwell.

Chicago Style (17th ed.) Citation

Labov, William. Sociolinguistic Patterns / by William Labov. Oxford: Blackwell, 1978.

MLA (9th ed.) Citation

Labov, William. Sociolinguistic Patterns / by William Labov. Blackwell, 1978.

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