Portney, Paul R .
Public policies for environmental protection/ - Washington, D.C. : 1990 - xv, 308 pages : illustrations ; 23 cm
9780915707522
Environmental law -- United States
Environmental policy -- United States .
Pollution -- Law and legislation -- United States
Pollution -- United States
Public policies for environmental protection/ - Washington, D.C. : 1990 - xv, 308 pages : illustrations ; 23 cm
9780915707522
Environmental law -- United States
Environmental policy -- United States .
Pollution -- Law and legislation -- United States
Pollution -- United States