APA (7th ed.) Citation

Trudgill, P. (2000). Sociolinguistics: An introduction to language and society. Penguin.

Chicago Style (17th ed.) Citation

Trudgill, Peter. Sociolinguistics: An Introduction to Language and Society. London: Penguin, 2000.

MLA (9th ed.) Citation

Trudgill, Peter. Sociolinguistics: An Introduction to Language and Society. Penguin, 2000.

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