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272 pages first pub 2002 (editions)

nonfiction history science informative slow-paced
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272 pages first pub 2002 (editions)

nonfiction history science informative slow-paced

240 pages first pub 2002 (editions)

nonfiction history science informative slow-paced

228 pages first pub 2002 (editions)

nonfiction history science informative slow-paced