Österreichische Ludwig Wittgenstein Gesellschaft, ebrary, Inc, Pichler, A., & Säätelä, S. (2006). Wittgenstein: The philosopher and his works (2nd ed.). Ontos Verlag.
芝加哥风格引文Österreichische Ludwig Wittgenstein Gesellschaft, Inc ebrary, Alois Pichler, 与 Simo Säätelä. Wittgenstein: The Philosopher and His Works. 2nd ed. Frankfurt: Ontos Verlag, 2006.
MLA引文Österreichische Ludwig Wittgenstein Gesellschaft, et al. Wittgenstein: The Philosopher and His Works. 2nd ed. Ontos Verlag, 2006.
警告：这些引文格式不一定是100％准确.