Cita APA (7th ed.)

Fogelin, R. J. (1987). Wittgenstein (2a. ed.). Routledge & Kegan Paul.

Cita Chicago (17th ed.)

Fogelin, Robert J. Wittgenstein. 2a. ed. Londres: Routledge & Kegan Paul, 1987.

Cita MLA (9th ed.)

Fogelin, Robert J. Wittgenstein. 2a. ed. Routledge & Kegan Paul, 1987.