01351nam 2200373 450 991071510710332120210312104604.0(CKB)5470000002508948(OCoLC)1241253918(EXLCZ)99547000000250894820210312d2018 ua 0engur|||||||||||txtrdacontentcrdamediacrrdacarrierProtect workers in trenches[Washington, D.C.] :U.S. Department of Labor, Occupational Safety and Health Administration,2018.1 online resource (1 poster) color illustrations"OSHA 3215-06R 2018."TrenchesUnited StatesSafety measuresPostersConstruction industryUnited StatesSafety measuresPostersConstruction workersWounds and injuriesUnited StatesPreventionPostersSafety posters.lcgftTrenchesSafety measuresConstruction industrySafety measuresConstruction workersWounds and injuriesPreventionUnited States.Occupational Safety and Health Administration,GPOGPOBOOK9910715107103321Protect workers in trenches3336737UNINA