Cita APA (7th ed.)

Wittgenstein, L. (1968). Philosophical Investigations. MacMillan Publishing.

Cita Chicago (17th ed.)

Wittgenstein, Ludwig. Philosophical Investigations. New York, Estados Unidos: MacMillan Publishing, 1968.

Cita MLA (9th ed.)

Wittgenstein, Ludwig. Philosophical Investigations. MacMillan Publishing, 1968.