L. Kaplan · Leonhard Koppelmann
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Bridged free radicals | 978-0-8247-1352-2 (0-8247-1352-4) | 1972 |
| Classroom at Crossroads | 978-0-205-14872-1 (0-205-14872-7) | 1993 |
| Education and the Family | 978-0-205-13389-5 (0-205-13389-4) | 1992 |