Columbia subject headings:
Architects--Germany.
Architecture--Germany--History--20th century.
Schwippert, Hans, 1899-1973.
Harvard subject headings:
Architects--Germany
Architecture--Germany--History--20th century
Schwippert, Hans, 1899-1973.
Princeton subject headings:
Architects--Germany.
Architecture--Germany--History--20th century.
Schwippert, Hans, 1899-1973.