1968. Fourth Impression. 93 pages. Yellow dust jacket over brown cloth. Clean pages with noticeable tanning and foxing to endpaper. Minor cracking to gutter by content page. Mild thumb-marking present. Boards have light edge wear with minor corner bumping. Mild crushing to spine, with occasional markings overall. Mild warping to front board. Clipped jacket has moderate edgewear with chips, tears, and creasing. Notable foxing and droplets to surfaces. Light rubbing and marking all over.