01038nam 2200337 450 991071657720332120210610131246.0(CKB)5470000002522381(OCoLC)1255713461(EXLCZ)99547000000252238120210610d1989 ua 0engur|||||||||||txtrdacontentcrdamediacrrdacarrierProtected area long-term housekeeping[Washington, D.C.] :United States Nuclear Regulatory Commission,1989.Generic letter ;89-20"September 26, 1989."Nuclear power plantsSecurity measuresIndustrial housekeepingNuclear power plantsSecurity measures.Industrial housekeeping.U.S. Nuclear Regulatory Commission,GPOGPOBOOK9910716577203321Protected area long-term housekeeping3257111UNINA