Columbia subject headings:
Law--Balkan Peninsula--History--19th century.
Law--Balkan Peninsula--History--20th century.
Harvard subject headings:
Law--Balkan Peninsula--History--19th century.
Law--Balkan Peninsula--History--20th century.
Princeton subject headings:
Law--Balkan Peninsula--History--19th century.
Law--Balkan Peninsula--History--20th century.