Columbia subject headings:
Harvard subject headings:
Romania--Relations--Soviet Union.
Soviet Union--Relations--Romania.
World War, 1939-1945--Causes.
World War, 1939-1945--Diplomatic history.
Princeton subject headings:
Romania--Relations--Soviet Union.
Soviet Union--Relations--Romania.
World War, 1939-1945--Causes.
World War, 1939-1945--Diplomatic history.