Columbia subject headings:
Ecosystem management--United States--Periodicals.
Endangered plants--United States--Periodicals.
Endangered species--United States--Periodicals.
Plant conservation--United States--Periodicals.
U.S. Fish and Wildlife Service--Periodicals.
Wildlife conservation--United States--Periodicals.
Harvard subject headings:
Ecosystem management--United States--Periodicals.
Endangered plants--United States--Periodicals.
Endangered species--United States--Periodicals.
Plant conservation--United States--Periodicals.
U.S. Fish and Wildlife Service--Periodicals.
Wildlife conservation--United States--Periodicals
Princeton subject headings:
Ecosystem management--United States--Periodicals.
Endangered plants--United States--Periodicals.
Endangered species--United States--Periodicals.
Periodicals.
Plant conservation--United States--Periodicals.
U.S. Fish and Wildlife Service--Periodicals.
Wildlife conservation--United States--Periodicals.