Columbia subject headings:
Exiles--Poland--History.
Poland--Emigration and immigration--History.
Russians--Poland--History.
Soviet Union--Emigration and immigration--History.
Soviet Union--History--Revolution, 1917-1921--Refugees--Poland.
Harvard subject headings:
Exiles--Poland--History.
Poland--Emigration and immigration--History.
Russians--Poland--History.
Soviet Union--Emigration and immigration--History.
Soviet Union--History--Revolution, 1917-1921--Refugees--Poland.
Princeton subject headings:
Exiles--Poland--History.
Poland--Emigration and immigration--History.
Russians--Poland--History.
Soviet Union--Emigration and immigration--History.
Soviet Union--History--Revolution, 1917-1921--Refugees--Poland.