1965. First Edition. 186 pages. Blue dust jacket over brown cloth. Contains black and white in-text diagrams and maps. Pages remain bright and clear with light tanning and foxing. Occasional thumb-marking present. Binding remains firm. Boards have mild edge wear with slight rubbing to surfaces and bumping to corners. Visible water staining to boards. Slight crushing to spine ends. Boards are slightly bowed, and book has a minor forward lean. Unclipped jacket has light edge wear with chips, tears and creasing. Mild water staining has caused jacket to ripple slightly. White and brown marks to panels. Light tanning to spine and edges.