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7 hours, 17 minutes first pub 2016 (editions)

nonfiction history science challenging informative slow-paced
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240 pages first pub 2016 (editions)

nonfiction history science challenging informative slow-paced

240 pages first pub 2016 (editions)

nonfiction history science challenging informative slow-paced

240 pages first pub 2016 (editions)

nonfiction history science challenging informative slow-paced

236 pages first pub 2016 (editions) user-added

nonfiction history science challenging informative slow-paced

missing duration info first pub 2016 (editions)

nonfiction history science challenging informative slow-paced

288 pages first pub 2016 (editions)

nonfiction history science challenging informative slow-paced