1970. Fourteenth Impression. 350 pages. Yellow dust jacket over blue cloth. Binding remains firm. Pages have light tanning and foxing throughout. Previous owner's inscription to title page. Slight stains and markings to some pages. Boards have light shelf-wear with corner bumping. Very slight crushing to spine ends. Front board is warped. Unclipped jacket has light edgewear with tears and creasing. Pen mark to front flap. Staining and wear marks overall.