Columbia subject headings:
City planning--France--History--20th century.
City planning--Germany--History--20th century.
Garden cities--France.
Garden cities--Germany.
Housing--France.
Housing--Germany.
Harvard subject headings:
City planning--France--History--20th century
City planning--Germany--History--20th century.
Garden cities--France.
Garden cities--Germany.
Housing--France
Housing--Germany
Princeton subject headings:
City planning--France--History--20th century.
City planning--Germany--History--20th century.
Garden cities--France.
Garden cities--Germany.
Housing--France.
Housing--Germany.