Cita APA (7th ed.)
Fogelin, R. J. (1999). Wittgenstein (2nd ed.). Routledge.
Cita Chicago (17th ed.)
Fogelin, Robert J. Wittgenstein. 2nd ed. London ; New York: Routledge, 1999.
Cita MLA (9th ed.)
Fogelin, Robert J. Wittgenstein. 2nd ed. Routledge, 1999.
Atenció: Aquestes cites poden no estar 100% correctes.