Province of Río Negro History

Province of Rio Negro History

Online Histories

 * Wikipedia's entry on the history of Rio Negro Province
 * Spanish wiki entry on history of Rio Negro Province
 * "Argentina and Uruguay," a Google ebook with a section on Rio Negro Province, published in 1916
 * "Geographía Argentina," a Google ebook with a chapter on Rio negro Province, published in 1905
 * "Descripción de las Gobernaciones Nacionales de La Pampa, del Rio Negro y del Neuquén," a Google ebook, published in 1889