APA (7th ed.) Citation

Wittgenstein, L., Wright, G. H. v., & Anscombe, G. E. M. (1981). Zettel (2nd ed.). Basil Blackwell.

Chicago Style (17th ed.) Citation

Wittgenstein, Ludwig, G. H. von Wright, and G. E. M. Anscombe. Zettel. 2nd ed. Oxford: Basil Blackwell, 1981.

MLA (8th ed.) Citation

Wittgenstein, Ludwig, et al. Zettel. 2nd ed. Basil Blackwell, 1981.