Columbia subject headings:
Salinity--Colorado River Watershed (Colo.-Mexico)
Water quality management--Colorado River Watershed (Colo.-Mexico)
Harvard subject headings:
Salinity--Colorado River Watershed (Colo.-Mexico)
Water quality management--Colorado River Watershed (Colo.-Mexico)
Princeton subject headings:
Salinity--Colorado River Watershed (Colo.-Mexico).
Water quality management--Colorado River Watershed (Colo.-Mexico).