APA (7th ed.) Citation

Coulmas, F. (1997). The Handbook of sociolinguistics. Blackwell.

Chicago Style (17th ed.) Citation

Coulmas, Florian. The Handbook of Sociolinguistics. Oxford: Blackwell, 1997.

MLA (9th ed.) Citation

Coulmas, Florian. The Handbook of Sociolinguistics. Blackwell, 1997.