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Vol. 25. Balbastro, Pablo, comp. Vocabulario de la lengua Opata: dialecto Tehuima (?)., Box: 14, Folder: 1. Campbell W. Pennington Papers, 33036864. Benson Latin American Collection, The University of Texas at Austin. https://archives.lib.utexas.edu/repositories/4/archival_objects/279393 Accessed September 26, 2026.