Columbia subject headings:
Architecture--Poland--Warsaw--History--20th century.
Warsaw (Poland)--Civilization--20th century.
Warsaw (Poland)--Description and travel.
Warsaw (Poland)--Intellectual life--20th century.
Warsaw (Poland)--Social life and customs--20th century.
Harvard subject headings:
Architecture--Poland--Warsaw--20th century.
Warsaw (Poland)--Buildings, structures, etc.
Warsaw (Poland)--Civilization--20th century.
Warsaw (Poland)--Description and travel.
Warsaw (Poland)--Intellectual life--20th century.
Warsaw (Poland)--Social life and customs--20th century.
Princeton subject headings:
Architecture--Poland--Warsaw--20th century.
Warsaw (Poland)--Civilization--20th century.
Warsaw (Poland)--Description and travel.
Warsaw (Poland)--Intellectual life--20th century.
Warsaw (Poland)--Social life and customs--20th century.