1977. Fifth Edition. Unpaginated. Pictorial dust jacket over purple cloth. Clean pages with light tanning and foxing throughout. Tightly bound with faint thumb-marking throughout. Previous owner's inscription to front endpaper. Boards have light shelf-wear with corner bumping. Books has a backward lean. Mild water stains and droplets to boards. Unclipped jacket has light edgewear with tears and creasing. Notable foxing.