1964. Third Edition. 95 pages. Pictorial dust jacket over blue cloth. Pages are lightly tanned and foxed throughout. Light thumb-marking present. Binding remains firm. Boards have mild edge wear with slight rubbing to surfaces. Soft crushing to spine ends. Mild sunning to spine and edges. Unclipped jacket has moderate edge wear with chips, tears and creasing. Scuffing and light marking overall. Light tanning to spine and edges.