Columbia subject headings:
Conservationists--West (U.S.)--Biography.
Nature conservation--West (U.S.)--History.
West (U.S.)--Biography.
Harvard subject headings:
Conservationists--West (U.S.)--Biography.
Nature conservation--West (U.S.)--History.
West (U.S.)--Biography.
Princeton subject headings:
Conservationists--West (U.S.)--Biography.
Nature conservation--West (U.S.)--History.
West (U.S.)--Biography.