Verlag: Second edition, 1973. Published by The National Geographic Society, Washington, D.C., 1973
ISBN 10: 0870440462 ISBN 13: 9780870440465
Hardcover. Zustand: Very Good. Zustand des Schutzumschlags: Good. 2nd Edition. Very good with good dust jacket. Dust jacket has some staining on inside and on outside spine surface, is bumped along top edges, and is worn at spine tips and corners. A few light spots on back cover. 204 pages. Illustrated.