APA (7th ed.) Citation

Wardhaugh, R., & Fuller, J. M. (2015). An introduction to sociolinguistics (Seventh edition.). John Wiley & Sons, Ltd.

Chicago Style (17th ed.) Citation

Wardhaugh, Ronald, and Janet M. Fuller. An Introduction to Sociolinguistics. Seventh edition. Chichester, West Sussex, [England]: John Wiley & Sons, Ltd, 2015.

MLA (9th ed.) Citation

Wardhaugh, Ronald, and Janet M. Fuller. An Introduction to Sociolinguistics. Seventh edition. John Wiley & Sons, Ltd, 2015.