Columbia subject headings:
Saar River Valley (France and Germany)
World War, 1914-1918--Territorial questions--Saar River Valley (France and Germany)
World War, 1939-1945--Territorial questions--Saar River Valley (France and Germany)
Harvard subject headings:
Saar River Valley (France and Germany)
World War, 1914-1918--Territorial questions--Saar River Valley (France and Germany)
World War, 1939-1945--Territorial questions--Saar River Valley (France and Germany)
Princeton subject headings: