- Paperback
- Publisher: National Geographic Society (April 1988)
- Language: English
- ISBN-10: 1572623861
- ISBN-13: 978-1572623866
- Average Customer Review:
(1 customer review) -
Amazon.com Sales Rank: #2,386,257 in Books (See Bestsellers in Books)
(Publishers and authors: Improve Your Sales) - Also Available in: Paperback | All Editions
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