1969. No Edition Remarks. 477 pages. No dust jacket. This is an ex-Library book. Brown boards with black and white lettering to spine and front. Numerous diagrams throughout. Expected library inserts, stamps and inscriptions. Binding a little loose. Pages remain bright and clear with minimal tanning. Boards have mild edge wear with slight rubbing to surfaces. Splits to front joint. Tanning to spine and edges. Lettering is darkened.