————. La necesidad de protejer el importante ramo de mineria., 1851.

————. La necesidad de protejer el importante ramo de mineria., 1851., Guide_No.: 1333. Guide to the Latin American Manuscripts in the University of Texas Library, Z 1601 T486. Benson Latin American Collection, The University of Texas at Austin. https://archives.lib.utexas.edu/repositories/4/archival_objects/500617 Accessed September 27, 2026.