APA (7th ed.) Citation

Andersson, L., & Trudgill, P. (1990). Bad language / Lars Andersson and Peter Trudgill. Basil Blackwell by arrangement with Penguin Books.

Chicago Style (17th ed.) Citation

Andersson, Lars-Gunnar, and Peter Trudgill. Bad Language / Lars Andersson and Peter Trudgill. Oxford: Basil Blackwell by arrangement with Penguin Books, 1990.

MLA (9th ed.) Citation

Andersson, Lars-Gunnar, and Peter Trudgill. Bad Language / Lars Andersson and Peter Trudgill. Basil Blackwell by arrangement with Penguin Books, 1990.

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