1) Adams, J.A.S. and W.M. Lowder (eds.) : The Natural Radiation Environment, Univ. of Chicago Press (1964) ; Adams, J.A.S., W.M. Lowder and T. F. Gesell (eds.) : The Natural Radiation Environment II, CONF-720805, The Natural Radiation Environment III, Book of Summary (1978)
2) Tanner, A.B.: Radon migration in the ground A review, Natural Radiation Environment (J. AS. Adams and W.M. Lowder, eds.) p, 161-90 (1964) ; Tanner: Physical and chemical controls on distribution of radium-226 and radon-222 in groundwater near Great Salt Lake, Utah, Natural Radiation Environment (J. AS. Adams and W.M. Lowder, eds.) ., p.253-76