APA aipamena

Monk, R. (1990). Ludwig Wittgenstein: The duty of genius (1st American ed.). Vintage.

Chicago Style aipamena

Monk, Ray. Ludwig Wittgenstein: The Duty of Genius. 1st American ed. New York: Vintage, 1990.

MLA aipamena

Monk, Ray. Ludwig Wittgenstein: The Duty of Genius. 1st American ed. Vintage, 1990.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.