TY - BOOK AU - Almy, Millie Corinne TI - Young children's thinking: studies of some aspects of Piaget's theory AV - BF 721 A573 PY - 1967///, c1966 CY - New York PB - Teachers College Press, Teachers College, Columbia University KW - Piaget, Jean, KW - Psicología infantil KW - Intelecto N1 - Incluye bibliografía e índices ER -