01325nam 2200373Ia 450 991069257050332120040512145938.0(CKB)5470000002353748(OCoLC)55128440ocm55128440(OCoLC)995470000002353748(EXLCZ)99547000000235374820040512d2002 ua 0engurbn||||||txtrdacontentcrdamediacrrdacarrierA social science plan for employee safety in the National Park Service[electronic resource] /Gary E. Machlis, Seth P. Tuler[Washington, D.C.] :[National Park Service, Social Science Program],[1998]Title from title screen (viewed on May 7, 2004)."June 1998."Includes bibliographical references.National parks and reservesUnited StatesSafety measuresNational parks and reservesSafety measures.Machlis Gary E1382940Tuler Seth1962-1382941Social Science Program (U.S.)GPOGPOBOOK9910692570503321A social science plan for employee safety in the National Park Service3427144UNINA