1970. Sixth impression. 156 pages. No dust jacket. This is an ex-Library book. Laminated pictorial paper covered boards. Ex library copy with associated labels, inserts, stamps and annotations. Pages remain bright and clean with minimal tanning and foxing. Pages with some foxing and tanning, particularly to endpapers and textblock edges. Binding remains firm. Boards have mild shelf wear with light rubbing and corner bumping. Some moderate marking and tanning. Lamination peeling.