Cita APA (7a ed.)

Wittgenstein, L., & McGuinness, B. (1997). Ludwig Wittgenstein: Cambridge letters : correspondence with Russell, Keynes, Moore, Ramsey and Sraffa. Blackwell Publishers.

Cita Chicago Style (17a ed.)

Wittgenstein, Ludwig, y Brian McGuinness. Ludwig Wittgenstein: Cambridge Letters : Correspondence with Russell, Keynes, Moore, Ramsey and Sraffa. Oxford: Blackwell Publishers, 1997.

Cita MLA (9a ed.)

Wittgenstein, Ludwig, y Brian McGuinness. Ludwig Wittgenstein: Cambridge Letters : Correspondence with Russell, Keynes, Moore, Ramsey and Sraffa. Blackwell Publishers, 1997.