| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Open World Preliminary Self-Study Pack English for Spanish Speakers | 978-84-9036-597-7 (84-9036-597-0) | 2019 | Susan Kingsley · Sheila Dignen |
| Open World Preliminary Student's Pack English for Spanish Speakers | 978-84-9036-587-8 (84-9036-587-3) | 2019 | Susan Kingsley · Sheila Dignen |
N. H. · Niahm Humphreys · Niamh Humphreys · Nina Hömberg · Sheila Niamh Humphrey. Susan Kingsley. Dignen