@misc{indiciaef944471c6284, title = {X-ray powder data for uranium and thorium minerals}, author = {Clifford Frondel and Daphne Riska and Judith Weiss Frondel}, year = {1956}, doi = {10.3133/tei575}, url = {https://pubs.usgs.gov/publication/tei575}, note = {Source identifier: tei575} }