Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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