1968. Third Improved and Enlarged Edit. 572 pages. This is an ex-Library book. Green dust jacket over green cloth. Jacket has been laminated to boards. Ex-library copy, with expected inserts and inscriptions. Pages remain bright and clear with minimal tanning and foxing. Thumb-marking present. Visible creasing to gutter. Binding remains firm. Boards are presumed clean as jacket is taped down. Unclipped jacket has moderate edgewear with chips, tears and creasing. Visible tanning to spine. Some rubbing to surfaces.