APA (7th ed.) Citation

Trudgill, P. (1985). Sociolinguistics: An introduction to language and society (Repr.). Penguin-Books.

Chicago Style (17th ed.) Citation

Trudgill, Peter. Sociolinguistics: An Introduction to Language and Society. Repr. Harmondsworth <<[u.a.]>>: Penguin-Books, 1985.

MLA (9th ed.) Citation

Trudgill, Peter. Sociolinguistics: An Introduction to Language and Society. Repr. Penguin-Books, 1985.