Columbia subject headings:
Costa Rica--Boundaries--Panama.
Panama--Boundaries--Costa Rica.
Uti possidetis (International law)
Harvard subject headings:
Costa Rica--Boundaries--Panama.
Panama--Boundaries--Costa Rica.
Uti possidetis (International law)
Princeton subject headings:
Costa Rica--Boundaries--Panama.
Panama--Boundaries--Costa Rica.
Uti possidetis (International law)