Autor
Piaget, Jean
2
Ackermann-Valladao, Edith
1
Apostel, Léo
1
Berthoud-Papandropoulou, Ioanna
1
Castorina, José Antonio
1
Céllerier, Guy
1
García, R.
1
García, Rolando
1
Gómez, Susana A.
1
Henriques, Gil
1
Inhelder, B.
1
Inhelder, BÂrbel
1
Monnier, Claude
1
Palau, Gladys Ana
1
Voneche, J.
1
Vonéche, Jacques
1
Wells, Angela
1