Columbia subject headings:
Endangered plants--California--Santa Cruz Mountains.
Endangered species--California--Santa Cruz Mountains.
Insects--California--Santa Cruz Mountains.
Harvard subject headings:
Endangered plants--California--Santa Cruz Mountains.
Endangered species--California--Santa Cruz Mountains.
Insects--California--Santa Cruz Mountains.
Princeton subject headings:
Endangered plants--California--Santa Cruz Mountains.
Endangered species--California--Santa Cruz Mountains.
Insects--California--Santa Cruz Mountains.