Columbia subject headings:
Romania--Politics and government--1866-1914--Sources.
Romania--Politics and government--1914-1944--Sources.
World War, 1914-1918--Causes--Sources.
World War, 1914-1918--Romania--Sources.
Harvard subject headings:
Romania--Politics and government--1866-1914--Sources.
Romania--Politics and government--1914-1944--Sources.
World War, 1914-1918--Causes--Sources.
World War, 1914-1918--Romania--Sources.
Princeton subject headings: