1968. 6th Impression. 192 pages. Paperback book with pictorial cover. Pages are lightly tanned and thumbed at the edges, with light foxing. Binding has remained firm. Slight water staining to first page; text unaffected. Paper cover is moderately rub worn and thumbed with noticeable shelf wear to edges and corners, creases to corners and spine. Splitting to spine, joints and ends. Rolled spine with reading creases.