Fogelin, R. J. (2002). Wittgenstein. Routledge.
Cita Chicago (17th ed.)Fogelin, Robert J. Wittgenstein. London ; New York: Routledge, 2002.
Cita MLA (9th ed.)Fogelin, Robert J. Wittgenstein. Routledge, 2002.
Atenció: Aquestes cites poden no estar 100% correctes.