APA (7th ed.) Citation

Malcolm, N., & Wright, G. H. v. (1972). Ludwig Wittgenstein: A memoir. Oxford University Press.

Chicago Style (17th ed.) Citation

Malcolm, Norman, and G. H. von Wright. Ludwig Wittgenstein: A Memoir. London: Oxford University Press, 1972.

MLA (9th ed.) Citation

Malcolm, Norman, and G. H. von Wright. Ludwig Wittgenstein: A Memoir. Oxford University Press, 1972.