Columbia subject headings:
Architecture--Conservation and restoration--Poland--Warsaw.
Architecture--Poland--Warsaw--History--20th century.
City planning--Poland--Warsaw--History--20th century.
Warsaw (Poland)--Buildings, structures, etc.
Warsaw (Poland)--Buildings, structures, etc.--Conservation and restoration.
Harvard subject headings:
Architecture, Modern--20th century--Poland--Warsaw.
Architecture--Poland--Warsaw--Conservation and restoration.
City planning--Poland--Warsaw--History--20th century.
Warsaw (Poland)--Buildings, structures, etc.
Warsaw (Poland)--Buildings, structures, etc.--Conservation and restoration.
Princeton subject headings: