Columbia subject headings:
Geopolitics--Antarctica--History.
Southern Cone of South America--Relations--Soviet Union.
Southern Cone of South America--Relations--United States.
Soviet Union--Relations--Southern Cone of South America.
United States--Relations--Southern Cone of South America.
Harvard subject headings:
Geopolitics--Antarctica.
Southern Cone of South America--Relations--Soviet Union.
Southern Cone of South America--Relations--United States.
Soviet Union--Relations--Southern Cone of South America.
United States--Relations--Southern Cone of South America.
Princeton subject headings:
Geopolitics--Antarctic regions--History.
Southern Cone of South America--Relations--Soviet Union.
Southern Cone of South America--Relations--United States.
Soviet Union--Relations--Southern Cone of South America.
United States--Relations--Southern Cone of South America.