Columbia subject headings:
Architects--Germany.
Architecture--Germany--History--20th century.
Gutbrod, Rolf--Criticism and interpretation.
Gutbrod, Rolf.
Harvard subject headings:
Architects--Germany
Architecture--Germany--History--20th century
Gutbrod, Rolf--Criticism and interpretation.
Gutbrod, Rolf.
Princeton subject headings:
Architects--Germany.
Architecture--Germany--History--20th century.
Gutbrod, Rolf--Criticism and interpretation.
Gutbrod, Rolf.