APA (7e ed.) Bronvermelding

Wittgenstein, L., Klagge, J. C., & Nordmann, A. (1993). Philosophical occasions, 1912-1951. Hacket.

Chicago (17e ed.) Bronvermelding

Wittgenstein, Ludwig, James Carl Klagge, en Alfred Nordmann. Philosophical Occasions, 1912-1951. Indianapolis: Hacket, 1993.

MLA (9e ed.) Bronvermelding

Wittgenstein, Ludwig, et al. Philosophical Occasions, 1912-1951. Hacket, 1993.