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Current edition

160 pages • first pub 2000 (editions)

nonfiction childrens science informative medium-paced

160 pages • first pub 2000 (editions)

nonfiction childrens science informative medium-paced

Other editions (1)

208 pages • first pub 2000 (editions) user-added

nonfiction childrens education health young adult

208 pages • first pub 2000 (editions) user-added

nonfiction childrens education health young adult

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