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000233933 049__ $$aISEA
000233933 074__ $$a0499-F-20 (MF)
000233933 0860_ $$aHE 20.7130:9446
000233933 1001_ $$aMark, Christopher.
000233933 24510 $$aProceedings, new technology for ground control in retreat mining$$h[microform] /$$cChristopher Mark and Robert J. Tuchman.
000233933 24630 $$aNew technology for ground control in retreat mining
000233933 260__ $$a[Atlanta, Ga.?] :$$bU.S. Dept. of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health,$$c1997.
000233933 300__ $$a126 p. :$$bill. ;$$c28 cm.
000233933 4901_ $$aInformation circular ;$$v9446
000233933 500__ $$a"Pittsburgh, PA and Spokane, WA Research Centers."
000233933 500__ $$aShipping list no.: 98-0809-M.
000233933 500__ $$a"March 1997."
000233933 504__ $$aIncludes bibliographical references.
000233933 533__ $$aMicrofiche.$$b[Washington, D.C.] :$$cSupt. of Docs., U.S. G.P.O.,$$d[1998]$$e2 microfiches : negative.
000233933 650_0 $$aGround control (Mining)$$zUnited States$$vCongresses.
000233933 650_0 $$aPillaring (Mining)$$zUnited States$$vCongresses.
000233933 650_0 $$aMine safety$$zUnited States$$vCongresses.
000233933 650_0 $$aMining engineering$$zUnited States$$vCongresses.
000233933 7001_ $$aTuchman, Robert J.
000233933 7102_ $$aPittsburgh Research Laboratory (National Institute for Occupational Safety and Health)
000233933 7102_ $$aSpokane Research Center (United States. Department of Energy)
000233933 830_0 $$aInformation circular (National Institute for Occupational Safety and Health) ;$$vIC 9446.
000233933 85230 $$bdfich$$hHE 20.7130:$$i9446
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