Columbia subject headings:
Biodiversity conservation--Government policy--United States.
Biodiversity conservation--United States.
United States. National Environmental Policy Act of 1969.
Harvard subject headings:
Biodiversity conservation--Government policy--United States.
Biodiversity conservation--United States
Biodiversity--United States.
Environmental monitoring--United States.
United States. National Environmental Policy Act of 1969.
Princeton subject headings:
Biodiversity conservation--Government policy--United States.
Biodiversity conservation--United States.
United States. National Environmental Policy Act of 1969