01637cam a2200397 a 4500005981168MiAaHDL20250726000000.0m d cr bn ---auaua860320s1986 paua f000 0 eng 86600080 (MiU)990059811680106381sdr-miu.990059811680106381(MiU)MIU01000000000000005981168-goog(OCoLC)13395838(MiU)Aleph005981168DLCDLCGPOBOMRIUtOrBLWBMRAI 28.23:9037Jankowski, Robert A.Using barriers to reduce dust exposure of longwall face workers /by Robert A. Jankowski and Charles A. Babbitt.[Pittsburgh, Pa.] :U.S. Dept. of the Interior, Bureau of Mines,[1986]10 p. :ill. ;27 cm.texttxtrdacontentcomputercrdamediaonline resourcecrrdacarrierReport of investigations / Bureau of Mines ;9037Distributed to depository libraries in microfiche.Bibliography: p. 8.Mode of access: Internet.Longwall mining.http://id.loc.gov/authorities/subjects/sh85078310Mine dusts.http://id.loc.gov/authorities/subjects/sh85085502Coal mines and miningDust control.http://id.loc.gov/authorities/subjects/sh85027366Babbitt, Charles A.United States.Bureau of Mines.http://id.loc.gov/authorities/names/n79063444http://id.loc.gov/rwo/agents/n790634443901507755830500598116820241217202656.020250726000000.020260320140657.02026-03-21T07:36:59Z2026-03-01T18:30:03ZSDR-MIUmiuALMAprepare.pl-004-009BKsdr-miu.990059811680106381MiUSDRGWLA005981168mdp.39015077558305MIU990059811680106381MIUGWLA20260321googlemdp.390150775583051986pdbibUS fed doc