| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Potato Pals 1: Activity Book | 978-0-19-439190-0 | 2005 | Patrick Jackson |
| Potato Pals 1: Book Set with Audio CD | 978-0-19-439174-0 | 2004 | " |
| Potato Pals 1: Picture Cards | 978-0-19-439192-4 | 2004 | " |
| Potato Pals 1: User's Guide | 978-0-19-439193-1 | 2005 | " |
| Potato Pals 1: Workbook | 978-0-19-439191-7 | 2005 | " |
| Potato Pals 2: Activity Book | 978-0-19-439194-8 | 2005 | " |
| Potato Pals 2: Book Set with Audio CD | 978-0-19-439182-5 | 2005 | " |
| Potato Pals 2: Picture Cards | 978-0-19-439196-2 | 2005 | " |
| Potato Pals 2: User's Guide | 978-0-19-439197-9 | 2005 | " |
| Potato Pals 2: Workbook | 978-0-19-439195-5 | 2005 | " |
R.K. · R. Kawamura · R. Keimer · R. Knauer · R. Kumar · Rei Kawamura · Rei Kimura · Roy Kummer · Ryohei Kawamura