APA (7th ed.) Citation

Van Herk, G. (2012). What is sociolinguistics. Wiley-Blackwell.

Chicago Style (17th ed.) Citation

Van Herk, Gerard. What Is Sociolinguistics. Chichester, West Sussex, UK: Wiley-Blackwell, 2012.

MLA (9th ed.) Citation

Van Herk, Gerard. What Is Sociolinguistics. Wiley-Blackwell, 2012.

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