Columbia subject headings:
Political refugees--Mexico--History--20th century.
Political refugees--Spain--History--20th century.
Refugees--Mexico.
Spain--History--Civil War, 1936-1939--Refugees.
Spain--History--Civl War, 1936-1939--Refugees.
Spaniards--Mexico--History--20th century.
Spaniards--Mexico.
Harvard subject headings:
Political refugees--Mexico--History--20th century
Political refugees--Spain--History--20th century
Spain--History--Civil War, 1936-1939--Refugees.
Spaniards--Mexico--History--20th century
Princeton subject headings: