Wardhaugh, R., & Fuller, J. M. (2015). An introduction to sociolinguistics (Seventh edition.). Wiley Blackwell.
Citación estilo ChicagoWardhaugh, Ronald, and Janet M. Fuller. An Introduction to Sociolinguistics. Seventh edition. Chichester, West Sussex, UK ; Malden, MA: Wiley Blackwell, 2015.
Cita MLAWardhaugh, Ronald, and Janet M. Fuller. An Introduction to Sociolinguistics. Seventh edition. Wiley Blackwell, 2015.
Warning: These citations may not always be 100% accurate.