| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Air Pollution | 978-0-516-25998-7 | 2002 | |
| Endangered Animals | 978-0-516-25999-4 | 2002 | |
| Recycling | 978-0-516-27356-3 | 2002 | |
| Water Pollution | 978-0-516-27357-0 | 2002 | |
| Wolves: Complete Cross-Curricular Theme Unit That Teaches About These Totally Cool Canines | 978-0-439-24118-2 | 2002 | Kathleen W. Kranking |
L.D. · Lucas D · R.D. · R. Donald · R. L · R. Lucas