Columbia subject headings:
Harvard subject headings:
Communists--Soviet Union--Biography
Mit͡skevich, Sergeĭ, 1869-1944.
Mit︠s︡kevich, Sergeĭ Ivanovich, 1869-1944.
Revolutionaries--Soviet Union--Biography
Princeton subject headings:
Mit︠s︡kevich, Sergeĭ Ivanovich, 1869-1944.