Columbia subject headings:
Antiquities--Collection and preservation.
Cultural policy.
Cultural property--Protection.
Historic preservation.
Historic sites--Conservation and restoration.
Landscape protection.
Harvard subject headings:
Antiquities--Collection and preservation
Cultural policy.
Cultural property--Protection
Historic preservation
Historic sites--Conservation and restoration
Landscape protection.
Princeton subject headings:
Antiquities--Collection and preservation.
Archaeology and state.
Cultural property--Protection.
Historic preservation.
Historic sites--Conservation and restoration.
Landscape protection.