Davis, T. H.
Intercomparison of North American radon progeny measurement methods and eequipment /by T.H. Davis and R.F. Holub. - Pittsburgh, PA : U.S. Dept. of the Interior, Bureau of Mines, 1989. - 7 p. - Report of investigations ; 9229. . - Report of investigations (United States. Bureau of Mines); 9229. .
90055106
Mines gases--Measurement.--North America
Radon--Isotopes--Measurement.
Intercomparison of North American radon progeny measurement methods and eequipment /by T.H. Davis and R.F. Holub. - Pittsburgh, PA : U.S. Dept. of the Interior, Bureau of Mines, 1989. - 7 p. - Report of investigations ; 9229. . - Report of investigations (United States. Bureau of Mines); 9229. .
90055106
Mines gases--Measurement.--North America
Radon--Isotopes--Measurement.