Columbia subject headings:
Gardens--Germany--Düsseldorf--History.
Landscape architecture--Germany--Düsseldorf--History.
Landscape gardening--Germany--Düsseldorf--History.
Parks--Germany--Düsseldorf--History.
Harvard subject headings:
Gardens--Germany--Düsseldorf--History.
Landscape architecture--Germany--Düsseldorf--History.
Landscape gardening--Germany--Düsseldorf--History.
Parks--Germany--Düsseldorf--History.
Princeton subject headings:
Catalogs.
Gardens--Germany--Düsseldorf--Catalogs.
Landscape architecture--Germany--Düsseldorf--Catalogs.
Parks--Germany--Düsseldorf--Catalogs.