1968. Fifth Edition, Revised . 321 pages. No dust jacket. Beige cloth. Pages are lightly tanned and foxed throughout. Previous owner's inscription to front free endpaper. Binding remains firm. Boards have mild edge wear with slight rubbing to surfaces. Soft crushing to spine ends. Book is slightly forward leaning. Light staining to spine. Light red marking to rear board. Mild sunning to spine and edges.