- Hardcover
- Publisher: Natl Geographic Society (June 1978)
- Language: English
- ISBN-10: 0685459993
- ISBN-13: 978-0685459997
- Product Dimensions: 10.2 x 7.2 x 1.3 inches
- Shipping Weight: 2.9 pounds
- Amazon Best Sellers Rank: #3,046,129 in Books (See Top 100 in Books)
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