D. Richter · Dan Richter · Danae Richter · Don Richter
| title | ISBN-13 (ISBN-10) | year of publica- tion |
|---|---|---|
| Baby Einstein: Discovering the Sounds of Nature | 978-0-7853-7964-5 (0-7853-7964-9) | 2003 |
| Sesame Street: Count with Elmo | 978-0-7853-6393-4 (0-7853-6393-9) | 2002 |