@misc{indiciae481f23fc27ff,
  title = {Trace elements research quarterly progress report - April 1 to June 30, 1952},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1953},
  doi = {10.3133/tei280},
  url = {https://pubs.usgs.gov/publication/tei280},
  note = {Source identifier: tei280}
}