Columbia subject headings:
Carol I, King of Romania, 1839-1914.
Eastern question (Balkan)
Jews--Romania.
Romania--History--Charles I, 1866-1914.
Harvard subject headings:
Carol I, King of Romania, 1839-1914.
Eastern question (Balkan)
Jews--Romania.
Romania--History--Charles I, 1866-1914.
Princeton subject headings:
Carol I, King of Rumania, 1839-1914.
Eastern question (Balkan)
Jews--Romania.
Romania--History--Charles I, 1866-1914.