Kiddy World Promotions B.V. · Rodale Books
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| The Wonder Weeks. How to Stimulate Your Baby's Mental Development and Help Him Turn His 8 Predictable, Great, Fussy Phases Into Magical Leaps Forward | 978-90-79208-01-2 (90-79208-01-9) | 2008 | Frans Plooij |
| The Wonder Weeks: How to Turn Your Baby's 8 Great Fussy Phases into Magical Leaps Forward | 978-1-57954-645-8 (1-57954-645-5) | 2003 | Frans X. Plooij |