Wardhaugh, R. (1992). An introduction to sociolinguistics (2nd ed.). Blackwell.
芝加哥风格引文Wardhaugh, Ronald. An Introduction to Sociolinguistics. 2nd ed. Malden, Mass.: Blackwell, 1992.
MLA引文Wardhaugh, Ronald. An Introduction to Sociolinguistics. 2nd ed. Blackwell, 1992.
警告：这些引文格式不一定是100％准确.