| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Hippo and Friends 1 Photocopiable Extras | 978-0-521-68015-8 | 2006 | Claire Selby |
| Hippo and Friends 2 Audio CD | 978-0-521-68018-9 | 2006 | " |
| Hippo and Friends Level 1 Teacher's Book Polish edition | 978-0-521-71748-9 | 2008 | Claire Selby · Barbara Czekańska · Izabela Lipińska |
| Hippo and Friends Level 2 Teacher's Book Polish edition | 978-0-521-71749-6 | 2008 | Claire Selby · Barbara Czekańska · Izabela Lipińska |
| Hippo and Friends Starter Teacher's Book Polish edition | 978-0-521-71747-2 | 2008 | Claire Selby · Barbara Czekańska · Izabela Lipińska |
L.M. · LAZLO MOUSSONG · Lesley MacInnes · Lesley McKnight Claire Selby · Leslie MacKenzie · Leslie Masonson · Leslie McMichael · Liesl McConchie