RT Book T1 Traditional preventive patrol T2 National Evaluation Program Series A, Phase 1 report Phase 1 summary report JF National Evaluation Program A2 Schell, Theodore H. LA English PP Washington, D.C. PB U.S. Dept. of Justice, National Institute of Law Enforcement and Criminal Justice, LEAA YR 1976 UL https://krimdok.uni-tuebingen.de/Record/1098930681 CN 363.2/32