@misc{indiciae9a7abde0c3ff,
  title = {Soapstone deposits of the Sherwan area, Hazara District, Pakistan},
  author = {James Alfred Calkins and Terry W. Offield and S. Tayyab Ali},
  year = {1973},
  doi = {10.3133/ofr7341},
  url = {https://pubs.usgs.gov/publication/ofr7341},
  note = {Source identifier: ofr7341}
}