Columbia subject headings:
Russo-Polish War, 1919-1920.
Soviet Union--Foreign relations--1917-1945.
Warsaw, Battle of, Poland, 1920.
Harvard subject headings:
Russo-Polish War, 1919-1920.
Soviet Union--Foreign relations--1917-1945.
Warwaw (Poland), Battle of, 1920.
Princeton subject headings:
Russo-Polish War, 1919-1920.
Soviet Union--Foreign relations--1917-1945.
Warsaw, Battle of, Poland, 1920.