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English
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Summary
A young chimpanzee preparing for bedtime learns to say "Yes" when things suit him and "No" when they do not.
Electronic Access
Contributor biographical information http://www.loc.gov/catdir/enhancements/fy0660/2006041648-b.html Publisher description http://www.loc.gov/catdir/enhancements/fy0660/2006041648-d.html
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