Tertium Organum: der dritte Kanon des Denkens, ein Schlüssel zu den Rätseln der Welt By P. D. Ouspensky Books / Hardcover Books Publisher: Ottom Wilhelm Barth Verlag, January 1988 Price Starting at $29.29 Free Shipping Send to a friend Add to Wishlist Below is a list of products arranged by condition. Select the quantity of the product you desire and click the "Add" button. Used - Very Good With Dust Jacket Very Good condition. Good dust jacket. German edition. (Fourth dimension, consciousness, philosophy) $29.29 1 in Stock at Warehouse Quantity Add Free Shipping to continental U.S. OR $1.00 per item discount if shipped to store. Reviews Goodreads reviews for Tertium Organum: der dritte Kanon des Denkens, ein Schlüssel zu den Rätseln der Welt There are not any review yet for this book