@misc{indiciae3ce4d7397930, title = {Research on uranium resource models; a progress report}, author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey}, year = {1980}, doi = {10.3133/ofr802018}, url = {https://pubs.usgs.gov/publication/ofr802018}, note = {Source identifier: ofr802018} }