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616 pages first pub 2013 (editions)

nonfiction science informative slow-paced
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481 pages first pub 2013 (editions)

nonfiction science informative slow-paced

missing duration info first pub 2013 (editions)

nonfiction science informative slow-paced

616 pages first pub 2013 (editions)

nonfiction science informative slow-paced

480 pages first pub 2013 (editions) user-added

nonfiction science informative slow-paced