Wardhaugh, R. (1992). An introduction to sociolinguistics (2nd ed.). Blackwell.
Chicago Style (17. basım) AtıfWardhaugh, Ronald. An Introduction to Sociolinguistics. 2nd ed. Malden, Mass.: Blackwell, 1992.
MLA (8th ed.) AtıfWardhaugh, Ronald. An Introduction to Sociolinguistics. 2nd ed. Blackwell, 1992.
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