01151nas 2200325 a 450 991069739240332120080806090758.0(CKB)5470000002387004(OCoLC)239039439(EXLCZ)99547000000238700420080806a20009999 |a engur|||||||||||txtrdacontentcrdamediacrrdacarrierMetal and nonmetal national mine rescue contest rules[electronic resource][Arlington, VA] U.S. Dept. of Labor, Mine Safety and Health Administrationvolumes digital, PDF filesDescription based on first issue; title from PDF t.p. (viewed Aug. 6, 2008).Latest issue consulted: 2008.Mine rescue workCompetitionsUnited StatesPeriodicalsMine rescue workCompetitionsUnited States.Mine Safety and Health Administration.GPOGPOJOURNAL9910697392403321Metal and nonmetal national mine rescue contest rules3117340UNINA