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261 pages first pub 2016 (editions)

nonfiction science adventurous challenging medium-paced
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272 pages first pub 2016 (editions)

nonfiction science adventurous challenging medium-paced

272 pages first pub 2016 (editions)

nonfiction science adventurous challenging medium-paced

missing duration info first pub 2016 (editions)

nonfiction science adventurous challenging medium-paced