| title | media type | ISBN-13 | year of publica- tion |
|---|---|---|---|
| Berlitz German Basic | Paperback | 978-981-246-697-6 | 2005 |
| Colloquial German 2 | " | 978-0-415-31672-9 | 2010 |
| Colloquial German 2 | Audio Cassette | 978-0-415-31673-6 | 2010 |
| Colloquial German 2 | Paperback | 978-0-415-31674-3 | 2006 |
| Colloquial German | Audio CD | 978-0-415-30258-6 | 2010 |