1968. No Edition Remarks. Unpaginated. This is an ex-Library book. Illustrated paper cover. Contains black and white illustrations and folded maps. Library copy, with expected inserts, stamps and inscriptions. Clean pages and illustrations with light tanning and mild foxing throughout. Binding remains firm. Paper covers have moderate edge-wear with slight rubbing to surfaces and curling to corners. Lettering is bright and clear. Moderate tanning and wear marks to covers.