Columbia subject headings:
Architecture, Modern--20th century.
Architecture--Germany--History--20th century.
Von Gerkan, Marg und Partner.
Harvard subject headings:
Architecture, Modern--20th century--Germany.
Architecture, Modern--21st century
Von Gerkan, Marg und Partner.
Princeton subject headings:
Architecture, Modern--20th century--Germany.
Architecture, Modern--20th century.
Von Gerkan, Marg und Partner.