Tohutoro APA (7th ed.)

Österreichische Ludwig Wittgenstein Gesellschaft, ebrary, Inc, Pichler, A., & Säätelä, S. (2006). Wittgenstein: The philosopher and his works (2nd ed.). Ontos Verlag.

Tohutoru Kātū Chicago (17th ed.)

Österreichische Ludwig Wittgenstein Gesellschaft, Inc ebrary, Alois Pichler, me Simo Säätelä. Wittgenstein: The Philosopher and His Works. 2nd ed. Frankfurt: Ontos Verlag, 2006.

Tohutoro MLA (9th ed.)

Österreichische Ludwig Wittgenstein Gesellschaft, et al. Wittgenstein: The Philosopher and His Works. 2nd ed. Ontos Verlag, 2006.