Estigarribia, Jose Felix. The Epic of Chaco: Marshal Estigarribia’s Memoirs of the Chaco War, 1932-1935. Edited and annotated by Pablo Max Ynsfran. Institute of Latin American Studies, Latin American Studies, VIII. Austin: University of Texas Press, 1950

Estigarribia, Jose Felix. The Epic of Chaco: Marshal Estigarribia’s Memoirs of the Chaco War, 1932-1935. Edited and annotated by Pablo Max Ynsfran. Institute of Latin American Studies, Latin American Studies, VIII. Austin: University of Texas Press, 1950, Box: 83. George I. Sánchez Papers, 23866736. Benson Latin American Collection, The University of Texas at Austin. https://archives.lib.utexas.edu/repositories/4/archival_objects/541563 Accessed September 27, 2026.