Columbia subject headings:
Drozdovskiĭ, Mikhail Gordeevich, 1881-1919.
Soviet Union--History--Revolution, 1917-1921.
Harvard subject headings:
Drozdovskiĭ, Mikhail Gordeevich, 1881-1919.
Soviet Union--History--Revolution, 1917-1921.
Princeton subject headings:
Soviet Union--History--Allied intervention, 1918-1920.