Columbia subject headings:
Kreis, Wilhelm, 1873-1955.
Harvard subject headings:
Architects--Germany
Architecture, Modern--20th century--Germany.
Architecture--Germany
Kreis, Wilhelm, 1873-1955--Criticism and interpretation.
Kreis, Wilhelm, 1873-1955.
Princeton subject headings:
Architecture--Germany.
Kreis, Wilhelm, 1873-1955.