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- 125 cool inventions, contributing writers, Crispin Boyer, Laura Daily, Michelle Harris, Cathy Lu, Sean McCollum, Douglas E. Richards, Sarah Wassner Flynn
- Brain candy 3, seriously sweet facts to satisfy your curiosity, [Julie Beer, author and researcher ; Michelle Harris, author and researcher]
- 125 cool inventions, contributing writers, Crispin Boyer, Laura Daily, Michelle Harris, Cathy Lu, Sean McCollum, Douglas E. Richards, Sarah Wassner Flynn
- Brain candy 3, seriously sweet facts to satisfy your curiosity, [Julie Beer, author and researcher ; Michelle Harris, author and researcher]