Columbia subject headings:
Deportation--Ukraine--History--20th century.
Poland--Foreign relations--Ukraine.
Poland--History--Wars of 1918-1921.
Polish people--Ukraine--History--20th century.
Population transfers--History--20th century.
Ukraine--Foreign relations--Poland.
Ukraine--History--20th century.
Harvard subject headings:
Deportation--Ukraine--History--20th century.
Poland--Foreign relations--Ukraine--History.
Polish people--Ukraine--History--20th century.
Population transfers--Ukrainians--History--20th century.
Ukraine--Foreign relations--Poland--History.
Ukraine--History--20th century.
Princeton subject headings:
Deportation--Ukraine--History--20th century.
Poland--Foreign relations--Ukraine.
Poland--History--Wars of 1918-1921.
Polish people--Ukraine--History--20th century.
Population transfers--History--20th century.
Ukraine--Foreign relations--Poland.
Ukraine--History--20th century.