Columbia subject headings:
Harvard subject headings:
Baztán Valley (Spain)--Emigration and immigration--History--19th century.
Immigrants--Latin America.
Latin America--Emigration and immigration--History--19th century.
Spaniards--Latin America.
Princeton subject headings:
Latin America--Emigration and immigration--History--19th century.
Latin America--Emigration and immigration--History--Sources.
Navarre (Spain)--Emigration and immigration--History--19th century.
Navarre (Spain)--Emigration and immigration--History--Sources.