- Hardcover: 94 pages
- Publisher: U S Geological Survey (February 21, 2001)
- Language: English
- ISBN-10: 0607939885
- ISBN-13: 978-0607939880
- Average Customer Review: No customer reviews yet. Be the first.
- Amazon.com Sales Rank: #7,700,808 in Books (See Bestsellers in Books)
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