D. Harvey · Dr. K. · H. Karp · Harvey Karp
| title | ISBN-13 (ISBN-10) | year of publica- tion |
|---|---|---|
| El Bebi Mas Feliz del Barrio | 978-84-7871-056-0 (84-7871-056-6) | 2004 |
| The Happiest Baby on the Block: The New Way to Calm Crying and Help Your Newborn Baby Sleep Longer | 978-0-553-58872-9 (0-553-58872-9) | 2005 |