Trudgill, P. (1974). Sociolinguistics : an introduction / (by) Peter Trudgill: An introduction. Penguin.
Chicago Style (17th ed.) CitationTrudgill, Peter. Sociolinguistics : An Introduction / (by) Peter Trudgill: An Introduction. Harmondsworth (etc.): Penguin, 1974.
MLA (9th ed.) CitationTrudgill, Peter. Sociolinguistics : An Introduction / (by) Peter Trudgill: An Introduction. Penguin, 1974.
Warning: These citations may not always be 100% accurate.