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- Noticias Americanas. at Biblioteca Virtual Miguel de Cervantes
- Secret expedition to Peru, or, The practical influence of the Spanish colonial system upon the character and habits of the colonists, exhibited in a private report read to the secretaries of His Majesty, Ferdinand VI., king of Spain, by George J. & Anthony Ulloa ... First pub. in Spanish by David Barry, and tr. by an American. Abridged. (at MOA)