A. B. · R. A. · R.B. · Richard A. · Richard B.
| title | ISBN-13 | year of publica- tion |
|---|---|---|
| Detecting the Sequence Book D | 978-0-02-687994-1 | 1997 |
| Following Directions | 978-0-02-687936-1 | 1997 |
| Locating the Answer: Book H | 978-0-02-687958-3 | 1997 |
| Sra Skill Series: Sss LV D Getting the Facts | 978-0-02-687964-4 | 1997 |
| SRA Specific Skills Series: Following Directions Book D | 978-0-02-687934-7 | 1997 |
| SRA Specific Skills Series: Using the Context Book D | 978-0-02-687944-6 | 1997 |