This opinion cites 12 cases:

Pennsylvania Environmental Council, Inc. v. Bartlett ( 1970 )


D. C. Federation of Civic Associations, Inc. v. Volpe ( 1970 )


Wildlife Preserves, Inc. v. John A. Volpe, Secretary U.S. Department of Transportation ( 1971 )


Citizens to Preserve Overton Park, Inc. v. Volpe ( 1971 )


Ely v. Velde ( 1971 )


Environmental Defense Fund, Inc. v. Corps of Engineers of the U. S. ARMY ( 1971 )


citizens-committee-for-the-hudson-valley-the-sierra-club-and-the-village ( 1970 )


Udall v. Tallman ( 1965 )


Triangle Improvement Council v. Ritchie ( 1969 )


Elliot v. Volpe ( 1971 )


Citizens Committee for the Hudson Valley v. Volpe ( 1969 )


Brooks v. Volpe ( 1970 )