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311 pages first pub 1989 (editions)

nonfiction history nature science challenging informative reflective slow-paced
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288 pages first pub 1989 (editions)

nonfiction history nature science challenging informative reflective slow-paced

288 pages first pub 1989 (editions)

nonfiction history nature science challenging informative reflective slow-paced

272 pages first pub 1989 (editions)

nonfiction history nature science challenging informative reflective slow-paced

missing page info first pub 1989 (editions)

nonfiction history nature science challenging informative reflective slow-paced