Columbia subject headings:
Drug control--International cooperation.
Drug control--United States.
Drug traffic--Latin America.
Harvard subject headings:
Drug control--United States
Drug traffic--United States
Latin America--Foreign economic relations--United States.
United States--Foreign economic relations--Latin America.
Princeton subject headings:
Drug control--United States.
Drug traffic--United States.
Latin America--Foreign economic relations--United States.
United States--Foreign economic relations--Latin America.