Columbia subject headings:
Action research--United States--Case studies.
Juvenile delinquents--Services for--United States--Case studies.
Problem children--Services for--United States--Case studies.
Harvard subject headings:
Action research--United States--Case studies.
Action research--United States.
Juvenile delinquents--Services for--United States--Case studies.
Problem children--Services for--United States--Case studies.
Princeton subject headings:
Action research--United States--Case studies.
Juvenile delinquents--Services for--United States--Case studies.
Problem children--Services for--United States--Case studies.