| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Fast-Track Czech on MP3 with Text | 978-1-57970-675-3 (1-57970-675-4) | 2011 |
| Fast-Track German on MP3 with Text | 978-1-57970-677-7 (1-57970-677-0) | 2011 |
Peter L. · Peter Leimbach · Peter Leimbigler · Peter Limbach · Peter Limpke · Peter Linebaugh · Peter Lumbeck · Peter Lumpkins