Columbia subject headings:
Adriatic Sea Region--History.
Architecture--Adriatic Sea Region.
Cities and towns--Adriatic Sea Region.
Harvard subject headings:
Adriatic Sea Region--History.
Architecture--Adriatic Sea Region.
Cities and towns--Adriatic Sea Region.
Princeton subject headings:
Adriatic Sea Region--History.
Architecture--Adriatic Sea Region.
Cities and towns--Adriatic Sea Region.