Columbia subject headings:
Harvard subject headings:
Colombia--Boundaries--Nicaragua.
Colombia--Foreign relations--Nicaragua.
Nicaragua--Boundaries--Colombia.
Nicaragua--Foreign relations--Colombia.
San Andrés y Providencia (Colombia)--International status.
Princeton subject headings:
Colombia--Boundaries--Nicaragua.
Nicaragua--Boundaries--Colombia.
San Andrés y Providencia (Colombia)--Boundaries.
San Andrés y Providencia (Colombia)--International status.