BF 721 K9 : Child psychiatry and prevention : proceedings of the fifth international congress of child psychiatry, Scheveningen, 1962 / ed. by D.A. van Krevelen.; BJL
BF 721 P5 A8 : Making sense of Piaget : the philosophical roots.; BJL
1983
1
BF 721 P5 B3 : Piaget : dictionary of terms / translated and edited by Elizabeth Rurschi-Herrmann and Sarah F. Campbell.; BJL
1973
1
BF 721 P5 B4 : The development of hypothetico-deductive thinking in children : a cross-cultural study of the validity of Piaget's model of the development of logical thinking.; BJL