1964. Fourth Edition. 255 pages. This is an ex-Library book. Illustrated dust jacket over blue cloth boards with lettering. Pages and binding are presentable with no major defects. Minor issues present such as mild cracking, inscriptions, inserts, light foxing, tanning and thumb marking. Overall a good condition item. Boards have mild shelf wear with light rubbing and corner bumping. Some light marking and sunning. Unclipped jacket. Panels and spine have light edgewear with tears and creases. Minor loss to spine and edges. Minor sunning to spine. Visible wear marks to spine and panels.