Hetty van de Rijt
The late Hetty van de Rijt-Plooij received her PhD at Cambridge University as a physical anthropologist. With her husband, Dr Plooij, she studied infant development in free-living chimpanzees with Dr. Jane Goodall in the Gombe National Park. As a researcher at the University of Amsterdam, she studied the development of human babies in their home environment through direct observations, filming, and in-depth interviews with their parents.
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The Wonder Weeks: How to Stimulate Your Baby's Mental Development and Help Him Turn His 10 Predictable, Great, Fussy Phases into Magical Leaps Forward(5th Edition)
Plooij, Frans X.; Van De Rijt, Hetty
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Y Ahora, Por Que Llora (Spanish Edition)
Hetty Van De Rijt
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Oje, ich wachse!: Von den acht "Sprüngen" in der mentalen Entwicklung Ihres Kindes während der ersten 14 Monate und wie Sie damit umgehen können - Jetzt mit großem Kapitel zum Ein- und...
Van De Rijt, Hetty; Plooij, Frans X.; Plas-Plooij, Xaviera
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Oje, ich wachse!
Van De Rijt, Hetty; Plooij, Frans X.
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Why They Cry: Understanding Child Development in the First Year
Rijt, Hetty Van De
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Oei, ik groei!: de acht sprongen in de mentale ont
Hetty Van De Rijt
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Les semaines miracle: Comment stimuler le développement de votre bébé durant les 20 premiers mois primordiaux de sa vie et transformer ses 10 grandes ... bonds magiques vers l’avant (French...
Plooij, Frans X.; Van De Rijt, Hetty
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The Wonder Weeks: A Stress-Free Guide to Your Baby's Behavior
Plooij, Xaviera; Plooij PhD, Frans X.; Van De Rijt PhD, Hetty
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