1967. 5th edition. 644 pages. This is an ex-Library book. Blue jacket over red & grey cloth. Expected library inserts, stamps and inscriptions. Pages are mildly tanned throughout. Text is clear. Binding remains firm. Boards have mild edge-wear with bumping to corners. Light crushing to spine. Gilt lettering remains bright and clear. Unclipped jacket. Panels have light edge wear with tears and creasing. Visible tanning to spine.