Simple text and photos explain the difference between a Triceratops and a Protoceratops.
- ISBN10 1467713570
- ISBN13 9781467713573
- Publish Date 1 August 2013 (first published 1 January 2013)
- Publish Status Out of Stock
- Publish Country US
- Imprint Lerner Publications (Tm)
- Format Hardcover (Library Binding)
- Pages 32
- Language English