Columbia subject headings:
Landscape architecture--Netherlands--History--20th century.
Landscape gardening--Netherlands--History--20th century.
Harvard subject headings:
Bazel, Karel Petrus Cornelis de, 1869-1923.
Bleeker, Gerard, 1882-1956.
Cool, Catharina Alida, 1887-1944.
Fokker, J. P. (Johan Pieter), 1889-
Gardens--Netherlands--History--20th century.
Landscape architecture--Netherlands--History--20th century.
Landscape gardening--Netherlands--History--20th century.
Nes, Klaas Cornelius van, 1876-1952.
Princeton subject headings: