Columbia subject headings:
Byzantine Empire--History.
Ethnology--Balkan Peninsula.
Greece--History.
National characteristics, Greek.
Romanies.
Treaty of Berlin
Harvard subject headings:
Byzantine Empire--History.
Ethnology--Balkan Peninsula
Greece--History.
National characteristics, Greek (Modern)
Romanies.
Princeton subject headings:
Byzantine Empire--History.
Ethnology--Balkan Peninsula.
Greece--History.
National characteristics, Greek.
Romanies.
Treaty of Berlin