“About the history: por Daniel Valcárcel. Lima, Edit. Lumen, 1949. 38 pp. 20x14 cms”., Letras, vol. 15, no. 43, pp. 293–296, Nov. 1949, Accessed: Sep. 12, 2026. [Online]. Available: https://revistaletras.unmsm.edu.pe/index.php/le/article/view/1109