Columbia subject headings:
Drug abuse--History.
Drug abuse--Social aspects.
Drug control.
Drug traffic--History.
Harvard subject headings:
Drug abuse--History
Drug control--History.
Drug traffic--History.
Drugs of abuse--History.
Narcotics--History.
Princeton subject headings:
Drug abuse--History.
Drug control--History.
Drug traffic--History.
Drugs of abuse--History.
Narcotics--History.