[Evans, Gareth. 1982. The Varieties of Reference. Oxford: Oxford University Press.]Search in Google Scholar
[Hume, David. 1772. An Enquiry concerning Human Understanding. Peru, IL: Open Court, 1988.]Search in Google Scholar
[Mackie, John. 1977. Ethics: Inventing Right and Wrong. Harmondsworth, Middlesex, England: Penguin Books.]Search in Google Scholar
[Kripke, Saul. 1982. Wittgenstein on Rules and Private Language. Cambridge, MA: Harvard University Press.]Search in Google Scholar
[Quine, Willard Van Orman. 1960. Word and Object. Cambridge, MA: The MIT Press.]Search in Google Scholar
[White, Stephen. 2004. Subjectivity and the Agential Perspective. Naturalism in Question, edited by M. De Caro & D. Macarthur, Cambridge, MA: Harvard University Press.]Search in Google Scholar