APA (7th ed.) Citation

Trudgill, P. (1995). Sociolinguistics : an introduction to language and society / Peter Trudgill: An introduction to language and society (Rev.[i.e. 3rd] ed.). Penguin.

Chicago Style (17th ed.) Citation

Trudgill, Peter. Sociolinguistics : An Introduction to Language and Society / Peter Trudgill: An Introduction to Language and Society. Rev.[i.e. 3rd] ed. Harmondsworth: Penguin, 1995.

MLA (9th ed.) Citation

Trudgill, Peter. Sociolinguistics : An Introduction to Language and Society / Peter Trudgill: An Introduction to Language and Society. Rev.[i.e. 3rd] ed. Penguin, 1995.

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