Columbia subject headings:
Coasts--Italy--Genoa--Early works to 1800.
Genoa (Italy)--History--Sources.
Hydraulic engineering--Italy--Genoa--Early works to 1800.
Sanitary engineering--Italy--Genoa--Early works to 1800.
Harvard subject headings:
Coasts--Italy--Genoa--Early works to 1800.
Genoa (Italy)--History--Sources.
Hydraulic engineering--Italy--Genoa--Early works to 1800.
Sanitary engineering--Italy--Genoa--Early works to 1800.
Princeton subject headings:
Coasts--Italy--Genoa--Early works to 1800.
Genoa (Italy)--History--Sources.
Hydraulic engineering--Italy--Genoa--Early works to 1800.
Sanitary engineering--Italy--Genoa--Early works to 1800.