RT Book T1 Social factors in juvenile delinquency: a study of the community, the family, and the gang in relation to delinquent behavior for the National Commission on Law Observance and Enforcement T2 Report on the causes of crime JF Research report A1 Shaw, Clifford A1 MacKay, Henry D. LA Undetermined PP Washington PB U.S.Govt.Print.Office YR 1931 UL https://krimdok.uni-tuebingen.de/Record/1080167870