Columbia subject headings:
Architectural photography--Germany--Erfurt--20th century.
Architecture--Germany--Erfurt--History--20th century.
Bauhaus--Influence.
Erfurt (Germany)--Buildings, structures, etc.
Harvard subject headings:
Architecture--Germany--Erfurt--20th century.
Bauhaus--Influence.
Princeton subject headings:
Architectural photography--Germany--Erfurt.
Architecture--Germany--Erfurt--20th century.
Bauhaus--Influence.
Erfurt (Germany)--Buildings, structures, etc.