Columbia subject headings:
Central America--Foreign economic relations--Germany (West)
Germany (West)--Foreign economic relations--Central America.
Germany (West)--Foreign economic relations--Mexico.
Mexico--Foreign economic relations--Germany (West)
Harvard subject headings:
Central America--Foreign economic relations--Germany (West)
Germany (West)--Foreign economic relations--Central America.
Germany (West)--Foreign economic relations--Mexico.
Mexico--Foreign economic relations--Germany (West)
Princeton subject headings:
Central America--Foreign economic relations--Germany (West).
Germany (West)--Foreign economic relations--Central America.
Germany (West)--Foreign economic relations--Mexico.
Mexico--Foreign economic relations--Germany (West).