Columbia subject headings:
Harvard subject headings:
Access to the sea (International law)
Bolivia--Foreign relations.
Geopolitics--South Atlantic Ocean Region.
Geopolitics--South Pacific Ocean Region.
Oceania--Strategic aspects.
South America--Foreign relations.
South Atlantic Ocean Region--Strategic aspects.
Princeton subject headings:
Access to the sea (International law)
Bolivia--Foreign relations.
Geopolitics--South Atlantic Ocean Region.
Geopolitics--South Pacific Ocean Region.
Oceania--Strategic aspects.
South America--Foreign relations.
South Atlantic Ocean Region--Strategic aspects.