@misc{indiciae4412d53070e2,
  title = {An appraisal of the Jabal Idsas magnetite mineralization based on diamond drill hole N40A},
  author = {Conrad Martin},
  year = {1970},
  doi = {10.3133/ofr70215},
  url = {https://pubs.usgs.gov/publication/ofr70215},
  note = {Source identifier: ofr70215}
}