000006856 000__ 00907cam\a2200241Wi\4500
000006856 001__ 6856
000006856 005__ 20210512010247.0
000006856 008__ 761014s1975\\\\dcuad\\\\\\\\f00000\eng\d
000006856 035__ $$a(OCoLC)ocm02502329
000006856 035__ $$a6856
000006856 040__ $$aUDI$$cUDI$$dGPO$$dISE
000006856 049__ $$aISEA
000006856 0860_ $$aI 69.9:1025
000006856 090__ $$aTN295$$b.R6
000006856 1001_ $$aRock, Robert L.
000006856 24500 $$aEvaluation of radioactive aerosols in United States underground coal mines /$$cby Robert L. Rock ... [et al.].
000006856 260__ $$aWashington :$$bU.S. Dept. of the Interior, Mining Enforcement and Safety Administration,$$c1975.
000006856 300__ $$a10 p. :$$bill., graphs ;$$c27 cm.
000006856 4900_ $$aInformational report - Mining Enforcement and Safety Administration ; IR1025
000006856 650_0 $$aAerosols.
000006856 650_0 $$aRadon$$xPhysiological effect.
000006856 650_0 $$aCoal mines and mining$$xSafety measures.
000006856 7400_ $$aRadioactive aerosols in United States underground coal mines.
000006856 85200 $$bgen$$hTN295$$i.R6
000006856 909CO $$ooai:library.usi.edu:6856$$pGLOBAL_SET
000006856 980__ $$aBIB
000006856 980__ $$aBOOK