Columbia subject headings:
Architecture and society.
Architecture--Germany (East)
Architecture--Germany (East)--History--20th century.
Architecture.
City planning.
Harvard subject headings:
Architecture and society
Architecture--Germany (East)--History.
Architecture.
Art and society.
City planning
Princeton subject headings:
Architecture and society.
Architecture, Modern--20th century--Germany (East).
Architecture--Germany (East)
Architecture.
City planning.