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Current edition

278 pages paperback 2008

nonfiction essays history science challenging informative slow-paced
Other editions (3)
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304 pages paperback 2008

nonfiction essays history science challenging informative slow-paced

287 pages digital 2008

nonfiction essays history science challenging informative slow-paced

372 pages digital 2008 user-added

nonfiction essays history science challenging informative slow-paced