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Current edition

199 pages hardcover 1988

nonfiction science challenging informative slow-paced
Other editions (232)
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193 pages 1988

nonfiction science challenging informative slow-paced

264 pages hardcover 1988

nonfiction science challenging informative slow-paced

missing duration info audio 1988

nonfiction science challenging informative slow-paced

247 pages paperback 1988 user-added

nonfiction science challenging informative slow-paced

167 pages paperback 1988

nonfiction science challenging informative slow-paced

211 pages paperback 1988 user-added

nonfiction science challenging informative slow-paced

248 pages 1988

nonfiction science challenging informative slow-paced

182 pages 1988

nonfiction science challenging informative slow-paced

228 pages 1988

nonfiction science challenging informative slow-paced

256 pages paperback 1988

nonfiction science challenging informative slow-paced