| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Beyond Sibling Rivalry: How To Help Your Children Become Cooperative, Caring and Compassionate | 978-O-8O5O-5689-1 (O-8O5O-5689-O) | 2000 |
G D · G. P. · P.G. · P.P. · Peter D. · Peter G. · Peter Goldenthal · Peter P. · Ph.D.