Columbia subject headings:
Drug control--Peru.
Drug control--United States.
Drug traffic--Peru.
Drug traffic--United States.
Harvard subject headings:
Drug control--Peru
Drug control--United States
Drug traffic--Peru
Drug traffic--United States
Princeton subject headings:
Drug control--America--Congresses.
Drug control--Peru--Congresses.
Drug traffic--America--Congresses.
Drug traffic--Peru--Congresses.