APA (7th ed.) Citation

Labov, W. (1972). Sociolinguistic patterns (1a. ed.). University of Pennsylvania Press.

Chicago Style (17th ed.) Citation

Labov, William. Sociolinguistic Patterns. 1a. ed. Filadelfia: University of Pennsylvania Press, 1972.

MLA (9th ed.) Citation

Labov, William. Sociolinguistic Patterns. 1a. ed. University of Pennsylvania Press, 1972.