Finch, W.I., Pierson, C.T., McCammon, R.B., Otton, J.K., Sutphin, H.B., and Wenrich, K.J., 1990, New developments in uranium endowment assessment in the United States, in Carter, L.M.H., ed., USGS research on energy resources--1990 program and abstracts - Sixth McKelvey Forum on mineral and energy resources: U.S. Geological Survey Circular 1060, p. 29-30.