1970. 5th printing. 431 pages. Paperback book with pictorial cover. Contains black and white illustrations. Neat, clean, with heavy tanning and foxing to pages and text block edges. Occasional thumbing throughout and cracking to hinges. Heavy foxing to reverse side of covers. Paper cover has mild edge-wear with light rubbing and creasing. Small tears and chipping, with heavy tanning and marking overall. Book is slightly curled.