RT Book T1 Undercover: police surveillance in America T2 A Twentieth Century Fund Book A1 Marx, Gary T. 1938- LA English PP Berkeley u.a. PB Univ. of California Press YR 1988 UL https://krimdok.uni-tuebingen.de/Record/022434720 CN HV8080.U5 SN 0520062868 K1 Undercover operations : United States K1 Criminal Investigation : United States K1 Police Patrol : Surveillance operations K1 USA : Verdeckte Ermittlung