Columbia subject headings:
Harvard subject headings:
Hydraulic engineering--China--Yangtze River Gorges
Water levels--China--Yangtze River Gorges.
Yangtze River Gorges (China)--Research.
Princeton subject headings:
Hydraulic engineering--China--Yangtze River Gorges.
Water levels--China--Yangtze River Gorges.
Yangtze River Gorges (China)--Research.