RT Book T1 FBI undercover guidelines: oversight hearings before the Subcommittee on Civil and Constitutional Rights of the Committee on the Judiciary, House of Representatives, Ninety-seventh Congress, first session, on FBI undercover guidelines, February 19, 25, and 26, 1981 LA English PP Washington PB U.S. G.P.O. YR 1981 UL https://krimdok.uni-tuebingen.de/Record/1603145400 NO "Serial no. 18." - 1020-A, 1020-B (microfiche) CN KF27.J847 1981i K1 United States : Federal Bureau of Investigation K1 Undercover operations : United States