| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Impact One: Manners of Writing: Manner of Writing | 978-0-435-10708-6 | 1974 | Peter James Shepherd |
| Impact: Tchrs' | 978-0-435-10703-1 | 1967 | Peter James Shepherd · P.J. Shepherd |
| Impact: Themes and Topics v. 2 | 978-0-435-10709-3 | 1986 | Peter James Shepherd |
| Junior Impact 5 Teachers Book: Tchrs' | 978-0-435-01740-8 | 1976 | " |
| Junior Impact: Creatures Bk. 3 | 978-0-435-01738-5 | 1976 | " |
| Junior Impact: It's a Fact Bk. 1 | 978-0-435-01736-1 | 1976 | " |
| Junior Impact: Myth and Legend Bk. 4 | 978-0-435-01739-2 | 1976 | " |
| Junior Impact: The Senses Bk. 2 | 978-0-435-01737-8 | 1976 | " |
| Young Impact: Bk. 2 | 978-0-435-10705-5 | 1972 | " |
| Young Impact: Bk. 3 | 978-0-435-10706-2 | 1972 | " |
| young Impact Book 1 Pupils | 978-0-435-10704-8 | 1972 | " |
| Young Impact: Tchrs' | 978-0-435-10707-9 | 1972 | " |
H. P. · R. H. · R. Henry · R. P. · R. Poole · Roger H. · Roger Henry · Roger Poole