Academic Press · Cambridge University Press
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Educational Developmental Psychology | 978-0-521-33288-0 (0-521-33288-5) | 2004 |
| U-shaped Behavioral Growth | 978-0-12-433315-4 (0-12-433315-X) | 2012 |
| U Shaped Behavioral Growth | 978-0-12-673020-3 (0-12-673020-2) | 1982 |