APA Edition Citation

Wardhaugh, R., & Fuller, J. M. An introduction to sociolinguistics (Seventh edition.).

Chicago Edition Citation

Wardhaugh, Ronald, and Janet M. Fuller. An Introduction to Sociolinguistics. Seventh edition.

MLA Edition Citation

Wardhaugh, Ronald, and Janet M. Fuller. An Introduction to Sociolinguistics. Seventh edition.

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