Columbia subject headings:
Harvard subject headings:
Feudalism--Karst (Slovenia and Italy : Region)
Karst (Slovenia and Italy : Region)--Economic conditions.
Karst (Slovenia and Italy : Region)--History.
Princeton subject headings:
Feudalism--Karst (Slovenia and Italy : Region).
Karst (Slovenia and Italy : Region)--Economic conditions.
Karst (Slovenia and Italy : Region)--History.