APA-referens (7:e uppl.)

Hudson, R. A. (2001). Sociolinguistics (2nd ed.). Cambridge University Press.

Chicago-referens (17:e uppl.)

Hudson, Richard A. Sociolinguistics. 2nd ed. Cambridge [England] ; New York, NY, USA: Cambridge University Press, 2001.

MLA-referens (8:e uppl.)

Hudson, Richard A. Sociolinguistics. 2nd ed. Cambridge University Press, 2001.