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360 pages first pub 2007 (editions)

nonfiction nature science challenging informative reflective slow-paced
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288 pages first pub 2007 (editions)

nonfiction nature science challenging informative reflective slow-paced

missing duration info first pub 2007 (editions)

nonfiction nature science challenging informative reflective slow-paced

7 hours first pub 2007 (editions) user-added

nonfiction nature science challenging informative reflective slow-paced