1963. Sixth Edition. 256 pages. Dust jacket over red cloth. Clean pages with faint tanning and foxing throughout. Tightly bound with faint thumb-marking throughout. Moderate water stain to upper text block edge. Boards have light shelf-wear with corner bumping. Moderate water stains to front board. Mild warping to boards. Unclipped jacket has light edgewear with tears and creasing. Heavy water staining to surfaces. Heavy sunning to spine. Moderate rubbing and marking all over.