| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Opening Doors to a Richer English Curriculum for Ages 6 to 9 | 978-1-78583-398-4 (1-78583-398-7) | 2019 | Bob Cox · Leah Crawford |
| Opening Doors to a Richer English Curriculum for Ages 10 to 13 | 978-1-78583-397-7 (1-78583-397-9) | 2019 | Bob Cox · Leah Crawford |