Columbia subject headings:
Belgrand, E. (Eugène), 1810-1878.
Hydraulic engineering--France--History.
Hydraulic engineering.
Hydraulic engineers--France--Biography.
Water quality management--France--Paris--History.
Water quality management.
Harvard subject headings:
Belgrand, E, 1810-1878 (Eugène)
Belgrand, E. (Eugène), 1810-1878.
Hydraulic engineering
Hydraulic engineering--France--History.
Hydraulic engineers--France--Biography.
Water quality management
Water quality management--France--Paris--History.
Princeton subject headings:
Belgrand, E. (Eugène), 1810-1878.
Hydraulic engineering--France--History.
Hydraulic engineers--France--Biography.
Water quality management--France--Paris--History.