Columbia subject headings:
Coca--Andes Region.
Coca--Argentina.
Drug abuse--Andes Region.
Drug abuse--Argentina.
Indians of South America--Drug use.
Harvard subject headings:
Coca--Andes Region.
Coca--Argentina.
Coca--Social aspects--Andes Region.
Cocaine industry--Andes Region
Drug abuse--Andes Region.
Drug abuse--Argentina.
Indians of South America--Drug use.
Princeton subject headings:
Coca--Andes Region.
Coca--Argentina.
Drug abuse--Andes Region.
Drug use--Argentina.
Indians of South America--Drug use.