@misc{indiciae4e62dc0412fc,
  title = {Stratigraphy of the Bannu and Dera Ismail Khan areas, Pakistan},
  author = {W. R. Hemphill and A.H. Kidwai},
  year = {1973},
  doi = {10.3133/pp716b},
  url = {https://pubs.usgs.gov/publication/pp716B},
  note = {Source identifier: pp716B}
}