Columbia subject headings:
Death Valley (Calif. and Nev.)
Deserts--Law and legislation--California.
Joshua Tree National Park (Calif.)
Mojave Desert.
Wilderness areas--Law and legislation--California.
Harvard subject headings:
Death Valley (Calif. and Nev.)
Deserts--Law and legislation--California.
Joshua Tree National Park (Calif.)
Mojave Desert (Calif.)
Wilderness areas--Law and legislation--California.
Princeton subject headings: