1971. Eighth Printing. 533 pages. Illustrated paper cover. Clean pages with noticeable tanning and foxing throughout. Textblock edges dyed brown. Moderate water staining to top and fore edges textblock. Binding remains firm. Paper covers have moderate edge-wear with slight rubbing to surfaces and curling to corners. Modearte splits to spine ends, edges and corners. Moderate tanning and wear marks to spine and covers.