| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 1981 | 978-0-9606140-0-4 | Therese Slevin Pirz | Speak French to Your Baby: Easy French Phrases to Teach Your Baby |
| '' | 978-0-9606140-1-1 | '' | Speak French to Your Baby: Easy French Phrases to Teach Your Baby |
| 2003 | 978-0-9606140-4-2 | Mark Hobson · Therese M. Pirz · Therese Slevin Pirz | Kids Stuff German (Bilingual Kids series) |