@misc{indiciae3e027a621bf5,
  title = {Geochemical prospecting abstracts, July 1957-December 1960},
  author = {Claire B. Davidson and Ellen L. Markward and John Cieslewicz},
  year = {1967},
  doi = {10.3133/ofr6777},
  url = {https://pubs.usgs.gov/publication/ofr6777},
  note = {Source identifier: ofr6777}
}