| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Earth Science, Grade 7 | 978-0-03-051953-6 (0-03-051953-5) | 2002 | Robert W. Todd · Robert V. Tucek |
| Life Science, Grade 6 | 978-0-03-051949-9 (0-03-051949-7) | 2002 | Robert W. Todd · Laura Zapanta |
D B · D. Bowman · D.F. · David B. · David Bowman · David F. · F. Bowman