1969. Ninth Edition. 1950 pages. Dust jacket over green cloth. Clean pages with mild tanning and foxing throughout, notable tanning bands to endpapers. Tightly bound with faint thumb-marking throughout. Mild droplets to text block edges. Boards have light edgewear with corner crushing and faint marking to boards. Mild sunning to board edges and spine, which has mild crushing to ends. Mild water stain to rear joint. Unclipped jacket has moderate edgewear with chips, tears, and creasing. Moderate water staining to lower edges of panels. Heavy tanning to spine and panel edges. Notable rubbing and marking all over.