Columbia subject headings:
Harvard subject headings:
Juvenile delinquents--Germany.
Substance abuse--Germany--Prevention.
Teenagers--Drug use--Germany.
Teenagers--Substance use--Germany.
Princeton subject headings:
Drug abuse surveys--Germany.
Juvenile delinquency--Germany--Statistics.
Statistics.
Substance abuse--Europe--Statistics.
Teenagers--Germany--Attitudes.
Teenagers--Germany--Social conditions.
Teenagers--Substance use--Germany--Statistics.