Columbia subject headings:
Architecture--Germany--History--20th century.
Poelzig, Hans, 1869-1936--Criticism and interpretation.
Harvard subject headings:
Architects--Germany
Architecture, Modern--20th century--Germany.
I. G. Farben-Haus.
Interessengemeinschaft Farbenindustrie Aktiengesellschaft.
Poelzig, Hans, 1869-1936.
Universität Frankfurt am Main
Princeton subject headings:
Architecture, Modern--20th century--Germany.
Poelzig, Hans, 1869-1936--Criticism and interpretation.