Columbia subject headings:
Harvard subject headings:
Alps Region--Civilization--21st century.
Alps Region--Politics and government--21st century.
Convenzione delle Alpi
Regional planning--Alps Region.
Sustainable development--Alps Region.
Princeton subject headings:
Alps Region--Civilization--21st century.
Alps Region--Politics and government--21st century.
Convenzione delle Alpi
Regional planning--Alps Region.
Sustainable development--Alps Region.