@misc{indiciae9421c18f49a7,
  title = {Mineralogy of ironstones from the Chichali and Makarwal areas, Mianwali and Kohat Districts, Pakistan},
  author = {John J. Matzko and Mahnoon Hasan},
  year = {1975},
  doi = {10.3133/ofr75494},
  url = {https://pubs.usgs.gov/publication/ofr75494},
  note = {Source identifier: ofr75494}
}