1968. First Edition. 168 pages. This is an ex-Library book. Brown dust jacket over blue cloth and silver lettering. Dust jacket in protective cover. Binding remains firm.Pages are moderately tanned. Annotations and marginalia to pages throughout. Pencil inscription to rear free end paper. Boards have light edge-wear with slight rubbing to surfaces. Unclipped jacket. Jacket has light edge-wear with closed tears and creasing.