1966. 4th edition. 301 pages. Pictorial dust jacket over grey cloth. Well bound and clean pages, with mild tanning to text block edges. Some rub-marking and tanning to pastedowns and endpapers. Boards have mild shelf wear with light rubbing and corner bumping. Some light marking and sunning. Moderate crushing to spine ends. Unclipped jacket has light edge wear with minor tears and chipping. Moderate tanning and creasing, with rubbing and marking.