Columbia subject headings:
Devlin, Mark.
Juvenile delinquents--United States--Biography.
Problem children--United States--Biography.
Harvard subject headings:
Devlin, Mark
Juvenile delinquents--United States--Biography.
Problem children--United States--Biography.
Princeton subject headings:
Devlin, Mark.
Juvenile delinquents--United States--Biography.
Problem children--United States--Biography.