Columbia subject headings:
Cerdaña (Spain and France)--History--20th century.
France--Boundaries--Spain--History--20th century.
Spain--Boundaries--France--History--20th century.
Spain--History--Civil War, 1936-1939--Territorial questions.
World War, 1939-1945--Territorial questions--France.
World War, 1939-1945--Territorial questions--Spain.
Harvard subject headings:
Cerdaña (Spain and France)--History--20th century.
France--Boundaries--Spain--History--20th century.
Spain--Boundaries--France--History--20th century.
Spain--History--Civil War, 1936-1939--Territorial questions.
World War, 1939-1945--Territorial questions--France.
World War, 1939-1945--Territorial questions--Spain.
Princeton subject headings:
Cerdaña (Spain and France)--Boundaries.
Cerdaña (Spain and France)--History--20th century.
France--Boundaries--Spain--History--20th century.
Spain--Boundaries--France--History--20th century.
Spain--History--Civil War, 1936-1939--Territorial questions.
World War, 1939-1945--Territorial questions--France.
World War, 1939-1945--Territorial questions--Spain.