@misc{indiciaee93a80309b6c,
  title = {Barite: a case study of import reliance on an essential material for oil and gas exploration and development drilling},
  author = {Donald I. Bleiwas and M. Michael Miller},
  year = {2015},
  doi = {10.3133/sir20145230},
  url = {https://pubs.usgs.gov/publication/sir20145230},
  note = {Source identifier: sir20145230}
}