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274 pages first pub 2007 (editions)

nonfiction history science challenging informative medium-paced
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272 pages first pub 2007 (editions)

nonfiction history science challenging informative medium-paced

272 pages first pub 2007 (editions)

nonfiction history science challenging informative medium-paced

254 pages first pub 2007 (editions)

nonfiction history science challenging informative medium-paced

8 hours, 29 minutes first pub 2007 (editions) user-added

nonfiction history science challenging informative medium-paced

288 pages first pub 2007 (editions)

nonfiction history science challenging informative medium-paced

missing page info first pub 2007 (editions) user-added

nonfiction history science challenging informative medium-paced