@misc{indiciaef0cd78f5b0f5,
  title = {Geologic investigations of radioactive deposits, semiannual progress report, December 1, 1956 to May 31, 1957},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1957},
  doi = {10.3133/tei690},
  url = {https://pubs.usgs.gov/publication/tei690},
  note = {Source identifier: tei690}
}