Keefe, R. (2000). Theories of vagueness. Cambridge University Press.
Dyfyniad Arddull ChicagoKeefe, Rosanna. Theories of Vagueness. Cambridge, UK ; New York: Cambridge University Press, 2000.
Dyfyniad MLAKeefe, Rosanna. Theories of Vagueness. Cambridge University Press, 2000.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.