"Cantos de vida y esperanza: Los cisnes, y otros poemas" by Rubén Darío (Editorial Atlante, Barcelona), 1932

"Cantos de vida y esperanza: Los cisnes, y otros poemas" by Rubén Darío (Editorial Atlante, Barcelona), 1932, Box: 11, Folder: 6. Pablo Antonio Cuadra Collection of Nicaraguan Literary Materials, 2022-21. Benson Latin American Collection, The University of Texas at Austin. https://archives.lib.utexas.edu/repositories/4/archival_objects/397364 Accessed September 26, 2026.