APA (7th ed.) Citation

Trudgill, P. (1995). Sociolinguistics: An introduction to language and society (New 3rd rev. ed.). Penguin.

Chicago Style (17th ed.) Citation

Trudgill, Peter. Sociolinguistics: An Introduction to Language and Society. New 3rd rev. ed. London, England ; New York, N.Y., USA: Penguin, 1995.

MLA (9th ed.) Citation

Trudgill, Peter. Sociolinguistics: An Introduction to Language and Society. New 3rd rev. ed. Penguin, 1995.