López, Adriana. «Ruth L. Ault: Children’s Cognitive Development: Piaget’s Theory and the Process Approach Oxford University Press, New York, 1977». Lenguas Modernas, no. 6 (mayo 5, 2017): 101–104. Accedido junio 26, 2024. https://cyberhumanitatis.uchile.cl/index.php/LM/article/view/45953.