Trudgill, P. (1985). Sociolinguistics: An introduction to language and society (Rev. ed.). Harmondsworth, Middlesex, England ; New York, N.Y., U.S.A.: Penguin.
Чикагска система за цитиранеTrudgill, Peter. Sociolinguistics: An Introduction to Language and Society. Rev. ed. Harmondsworth, Middlesex, England ; New York, N.Y., U.S.A.: Penguin, 1985.
MLA формат за цитиранеTrudgill, Peter. Sociolinguistics: An Introduction to Language and Society. Rev. ed. Harmondsworth, Middlesex, England ; New York, N.Y., U.S.A.: Penguin, 1985.
Внимание: Тези цитати може да не са 100% точни.