@misc{indiciae2028d81c0c4c,
  title = {Appraisal of phosphate in Pakistan},
  author = {James W. Mytton},
  year = {1975},
  doi = {10.3133/ofr75623},
  url = {https://pubs.usgs.gov/publication/ofr75623},
  note = {Source identifier: ofr75623}
}