Cita APA

Wardhaugh, R. (2006). An introduction to sociolinguistics (5th ed.). Blackwell Pub..

Chicago Edition Citation

Wardhaugh, Ronald. An Introduction to Sociolinguistics. 5th ed. Malden, Mass., USA: Blackwell Pub., 2006.

Cita MLA

Wardhaugh, Ronald. An Introduction to Sociolinguistics. 5th ed. Blackwell Pub., 2006.