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274 pages first pub 2015 (editions)

nonfiction history science informative slow-paced
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274 pages first pub 2015 (editions)

nonfiction history science informative slow-paced

312 pages first pub 2015 (editions)

nonfiction history science informative slow-paced

missing duration info first pub 2015 (editions)

nonfiction history science informative slow-paced