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240 pages hardcover 2000

nonfiction science challenging informative slow-paced
Other editions (8)
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256 pages paperback 2000

nonfiction science challenging informative slow-paced

256 pages 2000

nonfiction science challenging informative slow-paced

278 pages paperback 2000

nonfiction science challenging informative slow-paced

272 pages paperback 2000

nonfiction science challenging informative slow-paced

256 pages digital 2000 user-added

nonfiction science challenging informative slow-paced

8 hours, 39 minutes audio 2000 user-added

nonfiction science challenging informative slow-paced

8 hours, 39 minutes audio 2000 user-added

nonfiction science challenging informative slow-paced

318 pages paperback 2000

nonfiction science challenging informative slow-paced