APA (7th ed.) Citation

Wittgenstein, L., Paul, D., Wright, G. H. v., & Anscombe, G. E. M. (1969). On certainty: Uber gewissheit. Blackwell.

Chicago Style (17th ed.) Citation

Wittgenstein, Ludwig, Denis Paul, G. H. von Wright, and G. E. M. Anscombe. On Certainty: Uber Gewissheit. Oxford: Blackwell, 1969.

MLA (8th ed.) Citation

Wittgenstein, Ludwig, et al. On Certainty: Uber Gewissheit. Blackwell, 1969.