APA (7th ed.) Citation

Trudgill, P. (1983). Sociolinguistics: An introduction to language and society (Rev. ed.). Penguin Books.

Chicago Style (17th ed.) Citation

Trudgill, Peter. Sociolinguistics: An Introduction to Language and Society. Rev. ed. London: Penguin Books, 1983.

MLA (9th ed.) Citation

Trudgill, Peter. Sociolinguistics: An Introduction to Language and Society. Rev. ed. Penguin Books, 1983.