Columbia subject headings:
Exiles--Spain--History--20th century.
Political refugees--Spain--History--20th century.
Spain--History--Civil War, 1936-1939--Refugees.
Harvard subject headings:
Exiles--Spain--History--20th century.
Spain--History--1975-
Spain--Politics and government--20th century
Princeton subject headings:
Exiles--Spain--History--20th century.
Spain--History--1975-
Spain--Politics and government--20th century.