1963. Seventh Edition. 207 pages. Blue dust jacket over red cloth. Pages remain bright and clear with minimal tanning and foxing. Sticker to front pastedown. Pencil inscription to front pastedown. Pen annotations and underlining to pages throughout. Light creasing to gutter. Binding remains firm. Boards have mild edge-wear with slight rubbing to surfaces. Some tanning to spine and edges. Light bleaching to spine ends. Unclipped jacket has heavy edgewear with some areas of loss, heavy tears, chips and, creasing. Light tanning to spine. Some rubbing to surfaces. Scuffing to edges.