RT Book T1 Improving patrol productivity / 2 Specialized patrol JF Improving patrol productivity A1 Gay, William G. A1 Schack, Stephen A2 Schack, Stephen LA English PP Washington, D.C. PB Office of Technology Transfer, National Institute of Law Enforcement and Criminal Justice, U.S. Dept. of Justice YR 1977 UL https://krimdok.uni-tuebingen.de/Record/1098793781