@misc{indiciaebf5d91deb50d,
  title = {Hydrology of the Upper Capibaribe Basin, Pernambuco, Brazil - A reconnaissance in an Area of Crystalline Rocks},
  author = {Luiz Goncalves Chada Filho and Mario Dias Pessoa and William C. Sinclair},
  year = {1966},
  doi = {10.3133/wsp1663e},
  url = {https://pubs.usgs.gov/publication/wsp1663E},
  note = {Source identifier: wsp1663E}
}