APA (7th ed.) Citation

Wardhaugh, R. (1986). An Introduction to Sociolinguistics. Blackwell Publisher.

Chicago Style (17th ed.) Citation

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

MLA (8th ed.) Citation

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

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