Columbia subject headings:
Harvard subject headings:
Borderlands--SaarLorLux (Region)
European Union countries--Administrative and political divisions.
Interregionalism--SaarLorLux (Region)
Regional planning--SaarLorLux (Region)
SaarLorLux (Region)--Politics and government.
Princeton subject headings:
Borderlands.
European Union countries--Administrative and political divisions.
Interregionalism.
Regional planning.
SaarLorLux (Region)--Politics and government.