RT Book T1 Strengthening America's families: promising parenting strategies for delinquency prevention; user's guide A1 Kumpfer, Karole L. LA English PP Washington, DC PB US Dep. of Justice, Office of Justice Programs, Office of Juvenile Justice and Delinquency Prevention YR 1993 UL https://krimdok.uni-tuebingen.de/Record/1120889383 K1 Forschungsbericht