APA (7th ed.) Citation

Wittgenstein, L. (1967). Philosophical investigations. Basil Blackwell.

Chicago Style (17th ed.) Citation

Wittgenstein, Ludwig. Philosophical Investigations. Oxford: Basil Blackwell, 1967.

MLA (9th ed.) Citation

Wittgenstein, Ludwig. Philosophical Investigations. Basil Blackwell, 1967.

Warning: These citations may not always be 100% accurate.