Part I. Definitions, Scope and Trends in Juvenile Delinquency.- 1. The Transition of Child to Adult.- 2. Past and Current Biosocial Perspectives on Delinquency Causation.- 3. Social-Psychological Theories of Delinquency.- 4. Social Organizational Perspectives on Delinquency Causation.- 5. Perspectives on the Interpersonal Relationships in the Family.- 6. Perspectives on Gangs and Peer Group Influences Pertaining to Delinquency Causation.- 7. Perspectives...