1971. Fifth Impression. 159 pages. Pictorial paper cover. Pages are lightly tanned and foxed throughout. Occasional thumb-marking present. Slight cracking to hinges. Light scuffing to text-block edges. Paper cover has mild edge wear with scuffing to edges and creasing. Small splits to joints. Book has rolled spine. Light tanning to spine and edges. Mild rubbing to surfaces with curling to corners.