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Citizen Scientists: Be a Part of Scientific Discovery... |
Anyone can get involved in gathering data for ongoing, actual scientific studies such as the Audubon Bird Count and FrogWatch USA. This book, full of engaging photos and useful tips, will show young readers how. Full color.
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| I più venduti: Juvenile Nonfiction - Science & Nature - Experiments & Projects |
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$ 12.99 (Come calcoliamo i 
