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256 pages first pub 2011 (editions)

nonfiction science challenging informative slow-paced
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256 pages first pub 2011 (editions)

nonfiction science challenging informative slow-paced

255 pages first pub 2011 (editions)

nonfiction science challenging informative slow-paced

255 pages first pub 2011 (editions)

nonfiction science challenging informative slow-paced

272 pages first pub 2011 (editions)

nonfiction science challenging informative slow-paced

8 hours, 28 minutes first pub 2011 (editions)

nonfiction science challenging informative slow-paced

288 pages first pub 2011 (editions)

nonfiction science challenging informative slow-paced

294 pages first pub 2011 (editions)

nonfiction science challenging informative slow-paced

274 pages first pub 2011 (editions)

nonfiction science challenging informative slow-paced