TY - RPRT TI - Relationships between 222Rn dissolved in ground water supplies and indoor 222Rn concentrations in some Colorado front range houses AU - P. F. Folger AU - P. Nyberg AU - R. B. Wanty AU - E. Poeter PY - 1994 UR - https://pubs.usgs.gov/publication/70017931 ID - 70017931 ER -