@misc{indiciae48fbc19b22eb,
  title = {National coal exploration plan [Pakistan]},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1988},
  doi = {10.3133/ofr88251},
  url = {https://pubs.usgs.gov/publication/ofr88251},
  note = {Source identifier: ofr88251}
}