Columbia subject headings:
Harvard subject headings:
Croatia--Ethnic relations--History--20th century.
Istria (Croatia and Slovenia)--History--20th century.
Nationalism--Croatia--Istria (Croatia and Slovenia)--History--20th century.
Princeton subject headings:
Istria (Croatia and Slovenia)--Ethnic relations.
Istria (Croatia and Slovenia)--History--20th century.
Istria (Croatia and Slovenia)--History--21th century.