Columbia subject headings:
Antarctica--Discovery and exploration--American.
Historic sites--Antarctica--Management.
Historic sites--Conservation and restoration--Antarctica.
Harvard subject headings:
Antarctica--Discovery and exploration--American.
Historic sites--Antarctica--Management.
Historic sites--Conservation and restoration--Antarctica.
Princeton subject headings:
Antarctica--Discovery and exploration--American.
Historic sites--Antarctica--Antarctic Peninsula--Management.
Historic sites--Conservation and restoration--Antarctica--Antarctic Peninsula.