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Current edition

11 hours, 15 minutes • first pub 2014 (editions) user-added

nonfiction science challenging informative slow-paced

11 hours, 15 minutes • first pub 2014 (editions) user-added

nonfiction science challenging informative slow-paced

Other editions (4)

320 pages • first pub 2014 (editions)

nonfiction science challenging informative slow-paced

320 pages • first pub 2014 (editions)

nonfiction science challenging informative slow-paced

missing page info • first pub 2014 (editions) user-added

nonfiction science challenging informative slow-paced

missing page info • first pub 2014 (editions) user-added

nonfiction science challenging informative slow-paced

320 pages • first pub 2014 (editions) user-added

nonfiction science challenging informative slow-paced

320 pages • first pub 2014 (editions) user-added

nonfiction science challenging informative slow-paced

11 hours, 15 minutes • first pub 2014 (editions) user-added

nonfiction science challenging informative slow-paced

11 hours, 15 minutes • first pub 2014 (editions) user-added

nonfiction science challenging informative slow-paced

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