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241 pages first pub 2010 (editions)

nonfiction science challenging slow-paced
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241 pages first pub 2010 (editions)

nonfiction science challenging slow-paced

256 pages first pub 2010 (editions)

nonfiction science challenging slow-paced

missing duration info first pub 2010 (editions)

nonfiction science challenging slow-paced

315 pages first pub 2010 (editions)

nonfiction science challenging slow-paced