Columbia subject headings:
Ukraine--Politics and government--20th century.
World War, 1914-1918--Ukraine.
World War, 1914-1918.
Harvard subject headings:
World War, 1914-1918
World War, 1914-1918--Diplomatic history
World War, 1914-1918--Ukraine.
Princeton subject headings:
World War, 1914-1918--Diplomatic history.
World War, 1914-1918--Ukraine.
World War, 1914-1918.