Columbia subject headings:
Environmental policy--United States--Decision making.
Environmental policy--United States--Handbooks, manuals, etc.
Environmental protection--United States--Decision making.
Environmental protection--United States--Handbooks, manuals, etc.
Harvard subject headings:
Environmental policy--United States--Handbooks, manuals, etc.
Environmental protection--United States--Handbooks, manuals, etc.
Princeton subject headings:
Environmental policy--United States--Handbooks, manuals, etc.
Environmental protection--United States--Handbooks, manuals, etc.