@misc{indiciae4959c9a7f2db,
  title = {International strategic minerals inventory summary report; natural graphite},
  author = {U.H. Krauss and H.W. Schmidt and H.A. Taylor and D. M. Sutphin},
  year = {1989},
  doi = {10.3133/cir930h},
  url = {https://pubs.usgs.gov/publication/cir930H},
  note = {Source identifier: cir930H}
}