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000052649 035__ $$a(OCoLC)ocm08981528
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000052649 090__ $$aQE105.A36$$bB34
000052649 092__ $$a622.33
000052649 1001_ $$aBauer, Robert A.,$$d1910-2003.
000052649 24510 $$aGeologic investigation of roof and floor strata :$$bLongwall demonstration, Old Ben Mine no. 24 : final technical report, no. 1 /$$cby Robert A. Bauer and Philip J. DeMaris.
000052649 260__ $$aChampaign, Ill. :$$bIllinois State Geological Survey,$$c1982.
000052649 300__ $$a49 p. :$$bill. ;$$c28 cm.
000052649 4900_ $$aIllinois Geological Survey : ISGS Contract Grant report ;$$v1982-2
000052649 650_0 $$aCoal mines and mining$$zIllinois.
000052649 650_0 $$aCoal balls$$zIllinois.
000052649 650_0 $$aGeology$$zIllinois.
000052649 650_0 $$aCoal$$xGeology$$zIllinois.
000052649 7102_ $$aIllinois State Geological Survey.
000052649 85200 $$bgen$$hQE105.A36$$iB34
000052649 909CO $$ooai:library.usi.edu:52649$$pGLOBAL_SET
000052649 980__ $$aBIB
000052649 980__ $$aBOOK