Columbia subject headings:
Harvard subject headings:
Flood control--Europe, Central--History.
Flood damage prevention--Europe, Central--History.
Flood dams and reservoirs--Europe, Central--History.
Hydraulic engineering--Europe, Central--History.
Princeton subject headings:
Flood control--Europe, Central--History.
Flood damage prevention--Europe, Central--History.
Flood dams and reservoirs--Europe, Central--History.
Hydraulic engineering--Europe, Central--History.