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000040892 099__ $$aI28.26 /6:116
000040892 099__ $$aI28.26$$a/6:116
000040892 1001_ $$aCourtney, Welby G.
000040892 24510 $$aDust deposition in coal mine airways /$$cby Welby G. Courtney, John Kost, and Jay Colinet.
000040892 260__ $$aPittsburgh, Pa. :$$bU.S. Dept. of the Interior, Bureau of Mines,$$c1982.
000040892 300__ $$a15 p. :$$bill. ;$$c28 cm.
000040892 4900_ $$aTechnical progress report ;$$v116
000040892 500__ $$a"Bureau of Mines Coal Mine Health and Safety Program."
000040892 500__ $$a"February 1982."
000040892 504__ $$aBibliography: p. 14.
000040892 650_0 $$aCoal mines and mining$$xDust control.
000040892 650_0 $$aMine dusts.
000040892 7001_ $$aKost, John A.
000040892 85230 $$bdfich$$hI 28.26$$i/6:$$i116
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