01506oam 2200421 a 450 991070055500332120110810121332.0(CKB)5470000002410447(OCoLC)746163739(EXLCZ)99547000000241044720110810d2011 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrier7000-2 quarterly mine employment and coal production reporting[electronic resource][Arlington, Va.] :[U.S. Dept. of Labor, Mine Safety and Health Administration],[2011]1 online resource (2 pages)Program information bulletin ;no. P 11-28Title from title screen (viewed on Aug. 8, 2011)."Issue date 4/15/2011."Seven thousand-two quarterly mine employment and coal production reportingMine managementUnited StatesCoal minersEmploymentUnited StatesCoal mines and miningUnited StatesStatisticsStatistics.lcgftMine managementCoal minersEmploymentCoal mines and miningUnited States.Mine Safety and Health Administration.GPOGPOGPOBOOK99107005550033217000-2 quarterly mine employment and coal production reporting3190286UNINA