Columbia subject headings:
Architecture--Germany--Berlin--History--20th century.
Architecture--Poland--Warsaw--History--20th century.
Architecture--Russia (Federation)--Moscow--History--20th century.
Berlin (Germany)--Buildings, structures, etc.
City planning--Germany--Berlin--History--20th century.
City planning--Poland--Warsaw--History--20th century.
City planning--Russia (Federation)--Moscow--History--20th century.
Moscow (Russia)--Buildings, structures, etc.
Warsaw (Poland)--Buildings, structures, etc.
Harvard subject headings:
Architecture--Germany--Berlin--History--20th century
Architecture--Germany--Berlin--History--Congresses.
Architecture--Poland--Warsaw--History--20th century.
Architecture--Poland--Warsaw--History--Congresses.
Architecture--Russia (Federation)--Moscow--History--20th century
Architecture--Russia (Federation)--Moscow--History--Congresses.
Berlin (Germany)--Buildings, structures, etc.
Berlin (Germany)--Buildings, structures, etc.--Congresses.
City planning--Germany--Berlin--History--20th century--Congresses.
City planning--Germany--Berlin--History--20th century.
City planning--Poland--Warsaw--History--20th century--Congresses.
City planning--Poland--Warsaw--History--20th century.
City planning--Russia (Federation)--Moscow--History--20th century--Congresses.
City planning--Russia (Federation)--Moscow--History--20th century.
Moscow (Russia)--Buildings, structures, etc.
Moscow (Russia)--Buildings, structures, etc.--Congresses.
Warsaw (Poland)--Buildings, structures, etc.
Warsaw (Poland)--Buildings, structures, etc.--Congresses.
Princeton subject headings: