Villanueva, Enrique. “The Gifford Lectures 1972/73, The Development of Mind”. Crítica. Revista Hispanoamericana de Filosofía 11, no. 31 (November 9, 2018): 128–131. Accessed February 16, 2025. https://critica.filosoficas.unam.mx/index.php/critica/article/view/299.