Jean Karen Thomas · Karen Elaine Thomas · Karen F. Thomas · Karin Thomas
| title | ISBN-13 (ISBN-10) | year of publica- tion |
|---|---|---|
| Changing of the guard | 978-0-06-026163-4 (0-06-026163-3) | 1986 |
| Changing of the Guard | 978-0-06-026164-1 (0-06-026164-1) | 1986 |
| The Good Thing, The Bad Thing | 978-0-13-360354-5 (0-13-360354-7) | 1985 |