ISBN 9780061316869 books & textbook
On Certainty (Harper Perennial Modern Thought) (English and German Edition)
Ludwig Wittgenstein G. E. M. Anscombe G. H. von Wright Denis Paul G. E. M. Anscombe
Harper & Row /1972-09-06 Paperback / 192 Pages
isbn-10: 0061316865 / isbn-13: 9780061316869
