1969. 4th Edition. 216 pages. Pictorial dust jacket over black cloth. Binding remains firm. Pages have light tanning and foxing throughout. Previous owner's inscription to front free endpaper. Water staining to some page edges, text remains unaffected. Boards have light shelf-wear with corner bumping. Very slight crushing to spine ends. Unclipped jacket has moderate edgewear with chips, tears, and creasing. Light tanning to spine and edges. Tape and water staining to front panel. Light foxing overall.