D. P. · Dr.P · Peter L. · Peter Leimbigler
| title | ISBN-13 | year of publication |
|---|---|---|
| Fast-Track Chinese Mandarin | 978-1-62392-127-9 | 2015 |
| Fast-Track Chinese Mandarin | 978-1-62392-128-6 | 2015 |
| Fast-Track Czech | 978-1-62392-135-4 | 2015 |
| Fast-Track Czech | 978-1-62392-136-1 | 2015 |
| Fast-Track Dutch | 978-1-62392-133-0 | 2015 |
| Fast-Track Dutch | 978-1-62392-134-7 | 2015 |
| Fast-Track German | 978-1-62392-129-3 | 2015 |
| Fast-Track German | 978-1-62392-130-9 | 2015 |
| Fast-Track Japanese | 978-1-62392-125-5 | 2015 |
| Fast-Track Japanese | 978-1-62392-126-2 | 2015 |
| Fast-Track Portuguese | 978-1-62392-131-6 | 2015 |
| Fast-Track Portuguese | 978-1-62392-132-3 | 2015 |
| Fast-Track Spanish | 978-1-62392-121-7 | 2015 |
| Fast-Track Spanish | 978-1-62392-122-4 | 2015 |
| Fast-Track Swahili | 978-1-62392-137-8 | 2015 |
| Fast-Track Swahili | 978-1-62392-138-5 | 2015 |