APA-referens

Wittgenstein, L., Pears, D., & McGuinness, B. (2001). Tractatus logico-philosophicus. Routledge.

Chicago-stil citat

Wittgenstein, Ludwig, David Pears, och Brian McGuinness. Tractatus Logico-philosophicus. London: Routledge, 2001.

MLA-referens

Wittgenstein, Ludwig, et al. Tractatus Logico-philosophicus. Routledge, 2001.