APA (7th ed.) Citation

Wardhaugh, R. (1986). An Introduction to sociolinguistics. Basil Blackwell.

Chicago Style (17th ed.) Citation

Wardhaugh, Ronald. An Introduction to Sociolinguistics. Basil Blackwell, 1986.

MLA (8th ed.) Citation

Wardhaugh, Ronald. An Introduction to Sociolinguistics. Basil Blackwell, 1986.

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