1966. English Translation. 63 pages. This is an ex-Library book. Pictorial dust jacket over black cloth. Expected library inserts, stamps and inscriptions. Binding remains firm. Pages are lightly tanned throughout. Water staining to edge of front free endpaper. Boards have light shelf-wear with corner bumping. Slight crushing to spine ends. Unclipped jacket is in two parts and has heavy edgewear with areas of loss, heavy tears, chips, and creasing. Wear marks overall.