@misc{indiciae37504ea87bef,
  title = {Ground-water resources investigation in the Amran Valley, Yeman Arab Republic},
  author = {G. Chase Tibbitts and James Aubel},
  year = {1980},
  doi = {10.3133/ofr80774},
  url = {https://pubs.usgs.gov/publication/ofr80774},
  note = {Source identifier: ofr80774}
}