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Texto: Alfredo Armas Alfonso Fotografías: Sebastián Garrido - La tierra y de Oriente y su habitante - 1967
Library of Congress, J. C. M. Hanson, M. A. Gilkey - American and English genealogies in the library of Congress. - 1910
Édouard Sayous; Philarete Chasles - Histoire des Hongrois + Scenes des Camps et des Bivouacs Hongrois 1848-49 - 1872-1879