Bravo-Villasante, Carmen (1989). Ensayos de literatura infantil [Essays On Children's Literature] (in Spanish). EDITUM. pp. 302–303. ISBN9788476841754. Retrieved 3 October 2017 – via Google Books.
Peña Muñoz, Manuel (1982). Historia de la literatura infantil chilena [History of Chilean Children's Literature] (in Spanish). Santiago: Andrés Bello. p. 42. Retrieved 3 October 2017 – via Google Books.