APA ציטוט

Trudgill, P. (1979). Sociolinguistics: An introduction. N.Y.: Penguin Books.

Trích dẫn kiểu Chicago

Trudgill, Peter. Sociolinguistics: An Introduction. N.Y.: Penguin Books, 1979.

ציטוט MLA

Trudgill, Peter. Sociolinguistics: An Introduction. N.Y.: Penguin Books, 1979.