@misc{indiciaee2e7ed1997e0,
  title = {Uranium content and leachability of some igneous rocks and their geochemical significance},
  author = {George J. Neuerburg and John C. Antweiler and Barrie H. Bieler},
  year = {1956},
  doi = {10.3133/tei626},
  url = {https://pubs.usgs.gov/publication/tei626},
  note = {Source identifier: tei626}
}