Columbia subject headings:
Dikes (Engineering)--Netherlands--Grote Waard.
Grote Waard (Netherlands)--History.
Landscape architecture--Netherlands--History.
Polders--Netherlands--History.
Reclamation of land--Netherlands--Grote Waard.
Harvard subject headings:
Dikes (Engineering)--Netherlands--Grote Waard.
Grote Waard (Netherlands)--History.
Landscape architecture--Netherlands--History.
Polders--Netherlands--History.
Reclamation of land--Netherlands--Grote Waard.
Princeton subject headings:
Dikes (Engineering)--Netherlands--Grote Waard.
Grote Waard (Netherlands)--History.
Reclamation of land--Netherlands--Grote Waard.