APA

Wittgenstein L., Edited and Translated by G.E.M. Anscombe and G.H. Von Wright and Denis Paul, .On Certainty. New York: .

Chicago

Wittgenstein Ludwig, Edited and Translated by G.E.M. Anscombe and G.H. Von Wright and Denis Paul, .On Certainty. New York: .

Harvard

Wittgenstein L., Edited and Translated by G.E.M. Anscombe and G.H. Von Wright and Denis Paul, .On Certainty. New York: .

MLA

Wittgenstein Ludwig, Edited and Translated by G.E.M. Anscombe and G.H. Von Wright and Denis Paul, .New York: . .