Cita APA (7a ed.)

Malcolm, N., Wright, G. H. v., & Wittgenstein, L. (2001). Ludwig Wittgenstein: A memoir (2nd ed.). Clarendon Press ; Oxford University Press.

Cita Chicago Style (17a ed.)

Malcolm, Norman, G. H. von Wright, y Ludwig Wittgenstein. Ludwig Wittgenstein: A Memoir. 2nd ed. Oxford : New York: Clarendon Press ; Oxford University Press, 2001.

Cita MLA (9a ed.)

Malcolm, Norman, et al. Ludwig Wittgenstein: A Memoir. 2nd ed. Clarendon Press ; Oxford University Press, 2001.