Lua APA (7ú heag.)

Wardhaugh, R. (1992). An introduction to sociolinguistics (2nd ed.). Blackwell.

Lua i Stíl Chicago (17ú heag.)

Wardhaugh, Ronald. An Introduction to Sociolinguistics. 2nd ed. Malden, Mass.: Blackwell, 1992.

Lua MLA (8ú heag.)

Wardhaugh, Ronald. An Introduction to Sociolinguistics. 2nd ed. Blackwell, 1992.

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