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304 pages first pub 1997 (editions)

nonfiction science challenging informative reflective slow-paced
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304 pages first pub 1997 (editions)

nonfiction science challenging informative reflective slow-paced

502 pages first pub 1997 (editions)

nonfiction science challenging informative reflective slow-paced

257 pages first pub 1997 (editions)

nonfiction science challenging informative reflective slow-paced

502 pages first pub 1997 (editions)

nonfiction science challenging informative reflective slow-paced

174 pages first pub 1997 (editions)

nonfiction science challenging informative reflective slow-paced

missing duration info first pub 1997 (editions)

nonfiction science challenging informative reflective slow-paced