"Delaware River Estuary Region." . . "United States. Environmental Protection Agency." . . . . . . "Greenhouse effect, sea level rise, and salinity in the Delaware Estuary [Microfiche]"@en . . . "Greenhouse effect, sea level rise, and salinity in the delaware estuary"@en . . . . . . . . . . . . . "Greenhouse effect, sea level rise, and salinity in the Delaware Estuary"@en . . "Greenhouse effect, sea level rise, and salinity in the Delaware Estuary" . . . . . . . . . . . .