Columbia subject headings:
Gardens--Germany--Design--History--19th century.
Gardens--Germany--Design--History--20th century.
Germany--Social conditions--1871-1918.
Landscape architecture--Germany--History--19th century.
Landscape architecture--Germany--History--20th century.
Open spaces--Germany--History--19th century.
Open spaces--Germany--History--20th century.
Harvard subject headings:
Gardens--Germany--Design--History--19th century.
Gardens--Germany--Design--History--20th century.
Germany--Social conditions--1871-1918.
Landscape architecture--Germany--History--19th century.
Landscape architecture--Germany--History--20th century.
Open spaces--Germany--History--19th century.
Open spaces--Germany--History--20th century.
Princeton subject headings:
Gardens--Germany--Design--History--19th century.
Gardens--Germany--Design--History--20th century.
Germany--Social conditions--1871-1918.
Landscape architecture--Germany--History--19th century.
Landscape architecture--Germany--History--20th century.
Open spaces--Germany--History--19th century.
Open spaces--Germany--History--20th century.