Columbia subject headings:
Central America (Federal Republic : 1823-1840)--Boundaries--Mexico.
Central America (Federal Republic : 1823-1840)--History.
Chiapas (Mexico)--History.
Guatemala--Foreign relations--Mexico.
Mexico--Boundaries--Central America (Federal Republic)
Mexico--Foreign relations--Guatemala.
Harvard subject headings:
Central America--Foreign relations--Mexico.
Guatemala--Foreign relations--Mexico.
Mexico--Foreign relations--Central America.
Mexico--Foreign relations--Guatemala.
Princeton subject headings: