R. H. · Rhett Harrell · Ruth Harley
| title | ISBN-13 | year of publication |
|---|---|---|
| Decimals, Grades 5-7 | 978-0-7877-0298-4 | 1997 |
| Fractions: Grades 5-6 | 978-0-7877-0076-8 | 1996 |
| Math Workbook - Grade 1 | 978-0-7877-0062-1 | 1995 |
| Math Workbook - Grade 2 | 978-0-7877-0063-8 | 1995 |
| Math Workbook - Grade 3 | 978-0-7877-0064-5 | 1995 |
| Math Workbook - Grade 4 | 978-0-7877-0065-2 | 1995 |
| Math Workbook - Grade 5 | 978-0-7877-0066-9 | 1995 |
| Math Workbook - Grade 6 | 978-0-7877-0067-6 | 1995 |