| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| 50 Ways To Improve Your German: Teach Yourself | 978-1-4441-1065-4 (1-4441-1065-9) | 2010 |
| 50 Ways to Improve your German: Teach Yourself | 978-1-4441-3228-1 (1-4441-3228-8) | 2010 |
K. W. · K. Ward · S.K. · S W · S. Ward · Sieglinde Kloevekorn-Ward