Lua APA (7ú heag.)

Keefe, R. (2000). Theories of vagueness. Cambridge University Press.

Lua i Stíl Chicago (17ú heag.)

Keefe, Rosanna. Theories of Vagueness. Cambridge, UK ; New York: Cambridge University Press, 2000.

Lua MLA (9ú heag.)

Keefe, Rosanna. Theories of Vagueness. Cambridge University Press, 2000.

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