Piaget, Jean (, 1896-1980) Psicologia del niņo / Jean Piaget y Barbel Inhelder - 16a ed - Madrid, Espaņa : Morata , 2002 , c1969. - 158p. pb. ISBN: 84-7112-103-4 Subjects--Topical Terms: Psicologia del niņo Dewey Class. No.: 155.4 PIA