APA (7th ed.) Citation

Trudgill, P. (1978). Sociolinguistic patterns in british english. Edward Arnold.

Chicago Style (17th ed.) Citation

Trudgill, Peter. Sociolinguistic Patterns in British English. Londres: Edward Arnold, 1978.

MLA (9th ed.) Citation

Trudgill, Peter. Sociolinguistic Patterns in British English. Edward Arnold, 1978.