On certainty / edited by G. E. M. Anscombe and G. H. von Wright. Translated by Denis Paul and G. E. M. Anscombe. Über Gewissheit. English & German Über Gewissheit. Wittgenstein, Ludwig 1889-1951. Anscombe, G. E. M. (Gertrude Elizabeth Margaret), ed. Wright, G. H. von (Georg Henrik), 1916-2003. Certainty. 121.6 WIO Added t.p. in German: Über Gewissheit. Parallel German and English texts, each paged separately. Oxford : Blackwell, 1969. 1969. 1969 Text vii, 90, 90e p. : eng engger ger