@misc{indiciae94afc13f1e1a,
  title = {Numerical list of U.S. Geological Survey trace elements reports to September 15, 1952},
  author = {Jane H. Wallace and Virginia K. Blatcher},
  year = {1952},
  doi = {10.3133/tei300},
  url = {https://pubs.usgs.gov/publication/tei300},
  note = {Source identifier: tei300}
}