1973. Revised Editon. 191 pages. Pictorial dust jacket over blue cloth. Pages are lightly tanned and foxed throughout. Occasional thumb-marking present. Binding remains firm. Boards have mild edge wear with slight rubbing to surfaces. Soft crushing to spine ends. Light sunning to spine and edges. Unclipped jacket has light edge wear with chips, tears and creasing. Light sunning to spine and edges. Light scuffing to surfaces.