Columbia subject headings:
Gangs--Great Britain--History.
Human territoriality--Great Britain.
Urban youth--Great Britain--History.
Weapons--Great Britain.
Harvard subject headings:
Gangs--Great Britain.
Juvenile delinquency--Great Britain
Urban youth--Great Britain--Social conditions.
Princeton subject headings:
Gangs--Great Britain--History.
Human territoriality--Great Britain.
Urban youth--Great Britain--History.
Weapons--Great Britain.