Trudgill, P. (2000). Sociolinguistics: An introduction to language and society (4th ed.). Penguin.
芝加哥风格引文Trudgill, Peter. Sociolinguistics: An Introduction to Language and Society. 4th ed. London ; New York: Penguin, 2000.
MLA引文Trudgill, Peter. Sociolinguistics: An Introduction to Language and Society. 4th ed. Penguin, 2000.
警告：这些引文格式不一定是100％准确.