Number | Name | Date | Kind |
---|---|---|---|
4620398 | Wallin | Nov 1986 | |
4773309 | Walters | Sep 1988 | |
4885984 | Franceus | Dec 1989 | |
4949626 | Townsend et al. | Aug 1990 |
Entry |
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Michael Lafavore, Radon: the invisible threat, 1987, pp. 134-190. |
Radon Reduction in New Construction: An Interim Guide, OPA-87-009, United State Environmental Protection Agency, Aug. 1987. |