Columbia subject headings:
Gardens--Netherlands--Design--History--20th century.
Gardens--Netherlands--History--20th century.
Landscape architects--Netherlands--History--20th century.
Landscape architecture--Netherlands--History--20th century.
Harvard subject headings:
Gardens--Netherlands--Design--History--20th century.
Gardens--Netherlands--History--20th century.
Landscape architects--Netherlands--History--20th century.
Landscape architecture--Netherlands--History--20th century.
Princeton subject headings:
Gardens--Netherlands--Design--History--20th century.
Gardens--Netherlands--History--20th century.
Landscape architects--Netherlands--History--20th century.
Landscape architecture--Netherlands--History--20th century.