Columbia subject headings:
Cumulative effects assessment (Environmental assessment)--United States--Handbooks, manuals, etc.
United States. National Environmental Policy Act of 1969.
Harvard subject headings:
Ecology--Research--United States.
Environmental impact analysis--United States.
Environmental law--United States
Environmental policy--United States
United States. National Environmental Policy Act of 1969.
Princeton subject headings:
Cumulative effects assessment (Environmental assessment)--United States--Handbooks, manuals, etc.
United States. National Environmental Policy Act of 1969